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Zeng L, Ma J, Yang J, Yang J, Zeng X, Zhou Y. Ball milling nano-sized biochar: bibliometrics, preparation, and environmental application. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-34777-7. [PMID: 39190254 DOI: 10.1007/s11356-024-34777-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2024] [Accepted: 08/17/2024] [Indexed: 08/28/2024]
Abstract
Nano-sized biochar, which is a small structure prepared from biochar by grinding, has surpassed traditional biochar in performance, showing enhanced effects and potential for a wide range of environmental applications. Firstly, this paper visualizes and analyzes the literature in this field by CiteSpace to clarify the development trend of nano-sized biochar. The review intuitively shows the most influential countries, the most productive institutions, and the most concerned hot spots in the field of nano-sized biochar. Secondly, these hotspots in environment management are summarized by keywords and clustering: (1) The application of ball milling is a modification scheme that researchers have paid attention to, and it is also a key method for preparing biochar nanomaterials. It has a more dispersed structure and can support more modified materials. (2) Nano-sized biochar in the comprehensive utilization of water, soil, and plants was discussed and is a small range of application modification methods. (3) The bidirectional effects of nano-sized biochar on plants were analyzed, and the challenges in its application were listed. Finally, the economic management of nano-sized biochar and the relationship between microorganisms are the focus of the next research.
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Affiliation(s)
- Lingfeng Zeng
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, China
| | - Jiezhi Ma
- Department of Obstetrics and Gynecology, Xiangya Third Hospital, Central South University, Changsha City, 410013, Hunan Province, China
| | - Jie Yang
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, China
| | - Jian Yang
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, China.
| | - Xiangzhou Zeng
- Huaihua Ecological Environment Bureau, Huaihua, 418000, Hunan Province, China
| | - Yaoyu Zhou
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, China
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Saleh AK, Aboelghait KM, El-Fakharany EM, El-Gendi H. Multifunctional engineering of Mangifera indica L. peel extract-modified bacterial cellulose hydrogel: Unveiling novel strategies for enhanced heavy metal sequestration and cytotoxicity evaluation. Int J Biol Macromol 2024; 278:134874. [PMID: 39168196 DOI: 10.1016/j.ijbiomac.2024.134874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Revised: 08/10/2024] [Accepted: 08/17/2024] [Indexed: 08/23/2024]
Abstract
The escalating interest in bacterial cellulose (BC) confronts a substantial obstacle due to its biologically inert properties. Hence, BC was modified with ethanolic mango peel extract (EEMP) for various industrial and medical applications of the novel nanocomposite (BC/EEMP). High-performance liquid chromatography (HPLC) delineated the phenolic composition of EEMP, revealing a repertoire of polyphenolic compounds, notably chlorogenic acid, gallic acid, catechin, and ellagic acid. EEMP exhibited broad-spectrum antimicrobial activity against Candida albicans and Staphylococcus aureus, with MIC of 0.018 mg/mL and 0.009 mg/mL, respectively. The removal mechanism of Pb2+ and Ni2+ by BC/EEMP nanocomposite membrane via SEM, EDX, FT-IR, and XRD was characterized, indicating deposition and aggregation of heavy metals with diminished porosity. Heavy metal removal optimization using the Box-Behnken design achieved maximal removal of 95.5 % and 90 % for Pb2+ and Ni2+, respectively. Moreover, BC/EEMP nanocomposite demonstrated selective dose-dependent anticancer activity toward hepatoma (HepG-2, IC50 of 208.8 μg/mL), skin carcinoma (A431, IC50 of 216.7 μg/mL), and breast carcinoma (MDA, IC50 of 197.5 μg/mL), attributed to the enhanced availability of biologically active polyphenolic compounds and physical characteristics of BC. This study underscores the remarkable potential of BC/EEMP nanocomposite for multifaceted industrial and biomedical applications, marking a pioneering contribution to the field.
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Affiliation(s)
- Ahmed K Saleh
- Cellulose and Paper Department, National Research Centre, 33 El-Bohouth St., Dokki, P.O. 12622 Giza, Egypt.
| | - K M Aboelghait
- Water Pollution Research Department, National Research Centre, El-Bohouth St. 33, Dokki, P.O. 12622 Giza, Egypt
| | - Esmail M El-Fakharany
- Protein Research Department, Genetic Engineering and Biotechnology Research Institute GEBRI, City of Scientific Research and Technological Applications (SRTA City), New Borg El-Arab, Alexandria 21934, Egypt; Pharmaceutical and Fermentation Industries Development Centre (PFIDC), City of Scientific Research and Technological Applications (SRTA-City), New Borg Al-Arab, Alexandria, Egypt; Pharos University in Alexandria; Canal El Mahmoudia Street, Beside Green Plaza Complex, 21648 Alexandria, Egypt
| | - Hamada El-Gendi
- Bioprocess Development Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications (SRTA City), New Borg El-Arab, Alexandria 21934, Egypt.
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3
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Xu X, Weng X, Li J, Owens G, Chen Z. Enhanced removal of Pb(II) from acid mine drainage using green reduced graphene oxide/silver nanoparticles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 931:173001. [PMID: 38710397 DOI: 10.1016/j.scitotenv.2024.173001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 04/28/2024] [Accepted: 05/03/2024] [Indexed: 05/08/2024]
Abstract
Mining activities can potentially release high levels of Pb(II) in acid mine drainage (AMD), which thereafter poses a significant threat to ecological security. In this study, green reduced graphene oxide/silver nanoparticles (rGO/Ag NPs) were successfully synthesized via a one-step approach using a green tea extract and subsequently used as a cost-effective absorbent to remove Pb(II) from AMD. Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy indicated that organic functional groups in the green tea extracts, such as C=O-C, CO, and CC, acted both as reductants and stabilizers in the synthesis of rGO/Ag NPs. In addition, the removal efficiency of Pb(II) by rGO/Ag NPs (84.2 %) was much better than either rGO (75.4 %) or Ag NPs (12.3 %) alone. Also, in real AMD, the distribution coefficient (Kd) of Pb(II) (4528 mL/g), was much higher than other heavy metal indicating the adsorbent had a high selective affinity for Pb(II). Interestingly, after five cycles of use, the removal efficiency of Pb(II) by rGO/Ag NPs from AMD actually increased from 46.4 to 65.2 % due to iron oxides (i.e., Fe2O3 and Fe3O4) being generated when rGO/Ag NPs was exposed to AMD. The removal of Pb(II) via adsorption on the rGO/Ag NPs surface involved formation of hexagonal rod-like precipitates. This work demonstrated the potential of rGO/Ag NPs to be continuously used for the removal of Pb(II) from AMD.
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Affiliation(s)
- Xinmiao Xu
- Fujian Key Laboratory of Pollution Control and Resource Reuse, School of Environmental and Resource Sciences, Fujian Normal University, Fuzhou 350117, Fujian Province, China
| | - Xiulan Weng
- Fujian Key Laboratory of Pollution Control and Resource Reuse, School of Environmental and Resource Sciences, Fujian Normal University, Fuzhou 350117, Fujian Province, China
| | - Jiabing Li
- Fujian Key Laboratory of Pollution Control and Resource Reuse, School of Environmental and Resource Sciences, Fujian Normal University, Fuzhou 350117, Fujian Province, China.
| | - Gary Owens
- Environmental Contaminants Group, Future Industries Institute, University of South Australian, Mawson Lakes, SA 5095, Australia
| | - Zuliang Chen
- Environmental Contaminants Group, Future Industries Institute, University of South Australian, Mawson Lakes, SA 5095, Australia.
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Fan D, Peng Y, He X, Ouyang J, Fu L, Yang H. Recent Progress on the Adsorption of Heavy Metal Ions Pb(II) and Cu(II) from Wastewater. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1037. [PMID: 38921913 PMCID: PMC11206449 DOI: 10.3390/nano14121037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Revised: 06/11/2024] [Accepted: 06/11/2024] [Indexed: 06/27/2024]
Abstract
With the processes of industrialization and urbanization, heavy metal ion pollution has become a thorny problem in water systems. Among the various technologies developed for the removal of heavy metal ions, the adsorption method is widely studied by researchers and various nanomaterials with good adsorption performances have been prepared during the past decades. In this paper, a variety of novel nanomaterials with excellent adsorption performances for Pb(II) and Cu(II) reported in recent years are reviewed, such as carbon-based materials, clay mineral materials, zero-valent iron and their derivatives, MOFs, nanocomposites, etc. The novel nanomaterials with extremely high adsorption capacity, selectivity and particular nanostructures are summarized and introduced, along with their advantages and disadvantages. And, some future research priorities for the treatment of wastewater are also prospected.
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Affiliation(s)
- Dikang Fan
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (D.F.); (J.O.); (H.Y.)
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China;
| | - Yang Peng
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China;
- Key Laboratory of Functional Geomaterials in China Nonmetallic Minerals Industry, China University of Geosciences, Wuhan 430074, China
| | - Xi He
- Changsha Industrial Technology Research Institute (Environmental Protection) Co., Ltd., Changsha 410083, China;
- Aerospace Kaitian Environmental Technology Co., Ltd., Changsha 410083, China
| | - Jing Ouyang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (D.F.); (J.O.); (H.Y.)
| | - Liangjie Fu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (D.F.); (J.O.); (H.Y.)
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China;
- Key Laboratory of Functional Geomaterials in China Nonmetallic Minerals Industry, China University of Geosciences, Wuhan 430074, China
| | - Huaming Yang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (D.F.); (J.O.); (H.Y.)
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China;
- Key Laboratory of Functional Geomaterials in China Nonmetallic Minerals Industry, China University of Geosciences, Wuhan 430074, China
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Shah SJ, Luan X, Yu X, Su W, Wang Y, Zhao Z, Zhao Z. Construction of 3D-graphene/NH 2-MIL-125 nanohybrids via amino-ionic liquid dual-mode bonding for advanced acetaldehyde photodegradation under high humidity. J Colloid Interface Sci 2024; 663:491-507. [PMID: 38422975 DOI: 10.1016/j.jcis.2024.02.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 02/19/2024] [Accepted: 02/22/2024] [Indexed: 03/02/2024]
Abstract
The development of metal organic framework (MOF)-based π-π conjugated structures capable of effectively transforming H2O from humid air to •OH radicals for VOCs photodegradation is a significant but difficult task. Herein, an amino-ionic liquid (NH2-IL) based dual-mode bridging strategy was proposed to connect 3D-graphene with NH2-MIL-125 forming IL-3DGr/NM(Ti) nanohybrids for advanced acetaldehyde photodegradation. The rational integration of these components was responsible for: (1) maintaining π-π conjugated electron transport system; (2) generating abundant coordinatively unsaturated sites and oxygen vacancies; (3) increasing surface area of the nanohybrids. With these attributes, IL-3DGr/NM(Ti) demonstrated enhanced charge separation and transportation electrochemical impedance spectroscopy (EIS): 7-times), acetaldehyde adsorption (22 %), light absorption (bandgap: 1.51 eV). The rapid H2O adsorption and photoconversion to •OH radicals by IL-3DGr/NM(Ti) enabled it to demonstrate superior CH3CHO photodegradation rate under high humidity, surpassing many state-of-the-art photocatalysts by 9 to 187 times under static air conditions and with nearly similar catalyst dosages* (photocatalyst weight and initial acetaldehyde concentration (mg ppm-1) ratio). Interestingly, the IL-3DGr/NM(Ti) photocatalytic activity was enhanced by increasing RH% up-to 80 %. Besides, the nanohybrids demonstrated tremendous stability, with only a 3.9 % decline observed after 5 consecutive-cycles. This strategy provides new prospects to improve the compatibility of graphene/MOF materials for futuristic photoelectrical applications under high humidity.
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Affiliation(s)
- Syed Jalil Shah
- School of Chemistry and Chemical Engineering, Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, Guangxi University, Nanning 530004, China; School of Medicine and Health, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China; Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou, Henan 450000, China
| | - Xinqi Luan
- School of Chemistry and Chemical Engineering, Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, Guangxi University, Nanning 530004, China
| | - Xin Yu
- School of Chemistry and Chemical Engineering, Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, Guangxi University, Nanning 530004, China
| | - Weige Su
- School of Chemistry and Chemical Engineering, Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, Guangxi University, Nanning 530004, China
| | - Yucheng Wang
- School of Chemistry and Chemical Engineering, Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, Guangxi University, Nanning 530004, China
| | - Zhongxing Zhao
- School of Chemistry and Chemical Engineering, Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, Guangxi University, Nanning 530004, China
| | - Zhenxia Zhao
- School of Chemistry and Chemical Engineering, Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, Guangxi University, Nanning 530004, China.
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An BH, Xu DM, Wang RT, Wen YX, Geng R, Wu JY, Tang XC, Chen HB. The simultaneous removal of methylene blue (MB) and Ca 2+ by recyclable adsorbents based the scales derived from coal gasification system. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:32519-32537. [PMID: 38658508 DOI: 10.1007/s11356-024-33240-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 04/03/2024] [Indexed: 04/26/2024]
Abstract
The transformation of solid wastes from industrial production into effective adsorbents could significantly contribute to wastewater treatment. In this study, after acidizing and burning soft scale (SS) from coal gasification system, two magnetic adsorbents (mag-ASS and mag-BASS) were prepared via the combination of magnetite with ultrasonic, respectively. The treatment effects of mag-ASS and mag-BASS were then investigated for simulated wastewater containing macromolecular organic matter [i.e., methylene blue (MB)] and Ca2+. The results indicated that the pseudo second order kinetic, Elovich, Freundlich, Langmuir and Temkin model could well describe the adsorption behavior of MB and Ca2+ onto mag-ASS and mag-BASS. The maximum adsorption capacities of mag-ASS for MB and mag-BASS for Ca2+ were 600.53 mg/g and 102.54 mg/g, respectively. Surprisingly, the adsorption abilities of mag-ASS for MB and mag-BASS for Ca2+ show significantly higher than the others. The adsorption mechanisms of MB mainly included electrostatic interaction, π-π conjugate interaction and cation exchange, while those of Ca2+ were mainly electrostatic interaction and cation exchange. The diffusion of MB and Ca2+ onto the magnetic adsorbents might be controlled by the combined effects of intraparticle and liquid film diffusion. There was no significant reduction in adsorption capacity after 8 cycles of adsorption and desorption, indicating that SS-based magnetic adsorbents had good recyclability and stability. Moreover, the removal efficiency of mag-BASS for total hardness and total organic carbon in real coal gasification gray water (CGGW) was 82.60 and 64.10%, respectively. The treatment of CGGW and the resource of wastes would significantly promote the reasonable disposal of coal gasification scales.
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Affiliation(s)
- Bai-Hong An
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
- National Engineering Research Center for Urban Pollution Control, Tongji University, Shanghai, 200092, China
| | - Da-Mao Xu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
- National Engineering Research Center for Urban Pollution Control, Tongji University, Shanghai, 200092, China
| | - Run-Ting Wang
- Department of Materials Science, Fudan University, Shanghai, 200433, China
| | - Ye-Xuan Wen
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
- National Engineering Research Center for Urban Pollution Control, Tongji University, Shanghai, 200092, China
| | - Rui Geng
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
- National Engineering Research Center for Urban Pollution Control, Tongji University, Shanghai, 200092, China
| | - Jia-Yun Wu
- Sinopec Ningbo Engineering Co., LTD, Ningbo, 315103, China
| | - Xian-Chun Tang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Hong-Bin Chen
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China.
- National Engineering Research Center for Urban Pollution Control, Tongji University, Shanghai, 200092, China.
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Alshammari MS. Tetraethylenepentamine-Grafted Amino Terephthalic Acid-Modified Activated Carbon as a Novel Adsorbent for Efficient Removal of Toxic Pb(II) from Water. Molecules 2024; 29:1586. [PMID: 38611865 PMCID: PMC11013411 DOI: 10.3390/molecules29071586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/19/2024] [Accepted: 02/26/2024] [Indexed: 04/14/2024] Open
Abstract
In this study, a new composite, tetraethylenepentamine (TEPA), was incorporated into amino terephthalic acid-modified activated carbon (ATA@AC) through a one-pot integration of TEPA with the COOH moiety of ATA@AC. This process resulted in the creation of a TEPA@ATA@AC composite for Pb(II) removal from an aquatic environment. Several techniques, including SEM, EDX, FT-IR, TGA, XRD, and Zeta potential, were employed to emphasize the chemical composition, morphology, and thermal durability of the as-synthesized TEPA@ATA@AC composite. The impact of experimental variables on the adsorption of Pb(II) ions was studied using batch adsorption. The uptake assessment suggested that the TEPA@ATA@AC composite exhibited superior Pb(II) removal performance with high removal efficiency (97.65%) at pH = 6.5, dosage = 0.02 g, equilibrium time = 300 min, and temperature = 298 K. The isotherm data exhibited good conformity with the Langmuir isotherm model, whereas the kinetics data displayed strong agreement with both pseudo-first-order and pseudo-second-order kinetics models. This reflected that the Pb((II) uptake by the TEPA@ATA@AC composite was caused by physisorption coupled with limited chemisorption. The greatest monolayer uptake capacity of the TEPA@ATA@AC composite was 432.8 mg/g. The thermodynamic findings indicated that the Pb(II) uptake on the TEPA@ATA@AC composite was an exothermic and feasible process. After five adsorption-desorption runs, the TEPA@ATA@AC composite maintained a superior uptake capacity (83.80%). In summary, the TEPA@ATA@AC composite shows promise as a potent adsorbent for effectively removing Cr(VI) from contaminated water, with impressive removal efficiency.
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Affiliation(s)
- Mutairah S Alshammari
- Chemistry Department, College of Science, Jouf University, P.O. Box 2014, Sakaka 72341, Saudi Arabia
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Wu G, Wang B, Xiao C, Huang F, Long Q, Tu W, Chen S. Effect of montmorillonite modified straw biochar on transfer behavior of lead and copper in the historical mining areas of dry-hot valleys. CHEMOSPHERE 2024; 352:141344. [PMID: 38309600 DOI: 10.1016/j.chemosphere.2024.141344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 01/17/2024] [Accepted: 01/30/2024] [Indexed: 02/05/2024]
Abstract
Due to the rapid development of human beings, heavy metals are occurred in the Yunnan-Guizhou Plateau and Panxi Plateau, the special dry and hot climate areas. Pb and Cu can be quickly transferred through water-plant-animal, further harm to human health by food chain. Therefore, the study of heavy metal treatment is imminent. In this study, Biochar-montmorillonite composites were prepared by co-pyrolysis and characterized, and their ability to remove lead and copper from water-soil process were tracked. And their effectiveness in remediating soil contaminated by lead and copper was documented. The composite material has the rich pore structure, large specific surface area (81.5 m2/g) and a variety of surface functional groups such as C-C, CO, ester-metal and metal-oxygen bonds. Pb and Cu can be effectively adsorbed and fixed to the level of no harm to human health. The adsorption reaction of lead and copper on the Biochar-montmorillonite composites is more suitable to be described by Langmuir adsorption and pseudo-second-order kinetics models. The saturation adsorption capacity of the composite for Pb was measured as 212.5 mg/g. For Cu, it was 136.5 mg/g. The data were fitted by a two-compartment first-order kinetic model. ffast for Pb and Cu is estimated to be 0.81 and 0.78, respective. Fast adsorption is dominant and belongs to typical chemical adsorption, which is consistent with the second-order kinetic results. With 5 % of the composite, approximately 80 % of exchangeable heavy metals in those soils collected from the Yunnan-Guizhou Plateau and Panxi Plateau were reduced. The biochar-montmorillonite composites made Pb and Cu change to stable residual state, up to 35 %. Besides, it effectively restored the activity of urease and sucrase in soils. Results indicated that biochar-montmorillonite composites can be effectively used as an environment-friendly adsorbent or passivator to purify heavy metals in soils.
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Affiliation(s)
- Guangwei Wu
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China; Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
| | - Bin Wang
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China; Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China.
| | - Chang Xiao
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China; Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
| | - Fuyang Huang
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China; Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
| | - Quan Long
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China; Sichuan Academy of Ecological and Environmental Sciences, Chengdu, Sichuan 610015, People's Republic of China
| | - Weiguo Tu
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China; Sichuan Provincial Academy of Natural Resource Sciences, Chengdu, Sichuan 610015, People's Republic of China
| | - Shu Chen
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China; Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
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9
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Wang H, Miao D, Yu Y, Zhang Z, Zhu Y, Wang Q. PVA/PAA/DMTD electrospun nanofibrous membrane for the selective adsorption of Pb(II) ions in liquid foods. iScience 2024; 27:108737. [PMID: 38269099 PMCID: PMC10805650 DOI: 10.1016/j.isci.2023.108737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 08/28/2023] [Accepted: 12/12/2023] [Indexed: 01/26/2024] Open
Abstract
Lead (Pb(II)) contamination is common in liquid foods and can result from Pb(II) being present in the raw materials or during handling processes. However, due to the complexity of food matrices, there is limited data available concerning Pb(II) ion removal from food sources. This study focused on fabricating a PVA/PAA/DMTD electrospun nanofibrous membrane (ENFM) to efficiently and selectively remove Pb(II) ions from liquid foods. The PVA/PAA/DMTD ENFM had a maximum adsorption capacity of 138.3 mg/g for Pb(II) ions and demonstrated high selectivity toward the removal of Pb(II) ions. Negative values of the Gibbs free energy (ΔG°) showed that the spontaneous nature of the adsorption process was feasible at different temperatures. Moreover, it successfully removed Pb(II) ions from selected samples of commercially available drinks. Therefore, this adsorbent exhibits significant potential for removing Pb(II) ions from liquid food products, thereby reducing daily dietary exposure to Pb(II).
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Affiliation(s)
- Han Wang
- Department of Toxicology, School of Public Health, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Dongtian Miao
- PCFM Lab, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
| | - Yongjiang Yu
- Department of Toxicology, School of Public Health, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Zhihan Zhang
- Department of Toxicology, School of Public Health, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Youlong Zhu
- PCFM Lab, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
| | - Qing Wang
- Department of Toxicology, School of Public Health, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou 510080, China
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Wang Y, Zhang J, Du C, Jin Y, Wu X, He K, Yang Y, Li X. Effects of charge-assisted hydrogen bond on sorption and co-sorption of pharmaceutical contaminants on carbonaceous materials: Spectroscopic and theoretical studies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168375. [PMID: 37952672 DOI: 10.1016/j.scitotenv.2023.168375] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/12/2023] [Accepted: 11/04/2023] [Indexed: 11/14/2023]
Abstract
Charge-assisted hydrogen bond (CAHB) is a key mechanism that affects the environmental behavior of pharmaceutical pollutants (PCs). However, the strength and stability of various CAHBs, and their effects on the co-sorption behavior of PCs are still unclear. Herein, DFT calculation with different solvent models including two implicit solvent model (PCM and SMD), and one explicit solvent model (ESM) were applied in this study, to investigate the effects of different CAHBs on the sorption and co-sorption behavior of four PCs (e.g., clofibric acid, p-aminobenzoic acid, acetaminophen, and sulfamerazine) on three model carbonaceous materials. First, the appearance of new peaks in the very low field of 1H NMR, and the blue shift of OH and NH2 peaks in FTIR indicated that CAHBs were indeed formed between PCs and carbonaceous materials. Next, according to the principal component analysis and correlation analysis of parameters (e.g., ΔEads, bond length, bond angle, Egap, and ΔG) of these CAHBs calculated by the DFT with different solvent models, the results showed that SMD is the optimal model for calculating the strength and stability of CAHBs by DFT, and the strength and stability of CAHBs formed between PCs and carbonaceous materials in this study were in the order of homonuclear [O⋯H⋯O]- CAHB > heteronuclear [O⋯HN]-/[N⋯HO]+ type of CAHB > homonuclear [N⋯H⋯N]+. Also, the co-sorption behavior of different PCs co-existing in binary systems further confirmed that, all above types of CAHBs formed between PCs and carbonaceous materials can produce obvious competition effect on the co-existing PCs that only OHB formed between them. This study not only reveals the environmental behavior of co-existing PCs, but also provides a theoretical basis for the design of obligate sorption materials for PCs in the natural environment.
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Affiliation(s)
- Yue Wang
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
| | - Jinlong Zhang
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Cong Du
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
| | - Yaofeng Jin
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
| | - Xiaoyang Wu
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
| | - Kunyu He
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
| | - Yuxin Yang
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
| | - Xiaoyun Li
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China; International Joint Research Centre of Shaanxi Province for Pollutants Exposure and Eco-environmental Health, Xi'an 710119, China.
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11
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Su X, Li K, Xie H, Chen Z, Li X, Wu W. Controllable hydrophilic/superhydrophobic patterned coatings for optical information encryption/decryption based on water-triggered opaque to translucent transition. J Colloid Interface Sci 2024; 654:764-773. [PMID: 37866048 DOI: 10.1016/j.jcis.2023.10.093] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/16/2023] [Accepted: 10/18/2023] [Indexed: 10/24/2023]
Abstract
Anti-counterfeiting technologies are crucial for securing the authenticity and proof of commodities, in which the optical information encryption/decryption has attracted extensive attention for its overriding advantages of visibility and convenience. Inspired by the unique transparency transformation phenomenon of Diphylleia grayi petals, a controllable hydrophilic/superhydrophobic patterned coating with water-triggered opaque to translucent transition is proposed through the construction of a superhydrophobic coating, subsequent air plasma etching under a mask, and final hydrophilic modification to introduce stable invisible patterns. The superhydrophobic region exhibits great water repellency with a water contact angle (WCA) at 157°, while the hydrophilic region quickly absorbs water with a WCA at 61°. The patterned coating presents an opaque state for the serious light scattering induced by the rough microstructure and large refractive index difference between the coating and air, while the hydrophilic patterns on the coating transform to translucent after water infiltration for the reduced roughness and close refractive indexes of the coating and water. The information revealing is rapid and reversible, and demonstrates heat and long-term stability and great reusability. The findings conceivably stand out as a new methodology to fabricate controllable superwettable coatings with optical information encryption/decryption capability for application in anti-counterfeiting.
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Affiliation(s)
- Xiaojing Su
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China.
| | - Kunquan Li
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Huali Xie
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Zhuohan Chen
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Xuanjun Li
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Wenjian Wu
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China.
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12
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Ishraydeh I, Hamed O, Deghles A, Jodeh S, Azzaoui K, Hasan A, Assali M, Jaseer A, Mansour W, Hacıosmanoğlu GG, Can ZS, Algarra M. Olive industry liquid waste from trash to metal adsorbent for wastewater purification. BMC Chem 2024; 18:4. [PMID: 38172974 PMCID: PMC10765737 DOI: 10.1186/s13065-023-01104-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 12/11/2023] [Indexed: 01/05/2024] Open
Abstract
The development of biobased polymeric materials for wastewater purification has become a demand due to the growing need for water free of hazardous metal ions for safe purposes. The organic components of the OLLW including carbohydrates, phenolics, aromatic acids and others are cost-effective and sustainable choices for this application. This work focuses on a method for turning the organic components of liquid waste from the olive industry (OILW) into a foam-based value-added polymer that has several metal ion binding sites. The process of making the target polymers involved reacting the components of the OILW with hexamethylene diisocyante and 1,4-phnyelene diisocynate to create the polymeric materials LHMIDIC and LPDIC that are in foam forms with urethane linkages, respectively. The adsorption competence of the polymeric foams toward Pb(II) was evaluated as a function of various parameters including adsorbent dose, pH, temperature, initial ion concentration and time. The optimum parameters values that led to a quantitative removal of Pb(II) were identified. The obtained thermodynamic parameters showed that the adsorption by the two foams was spontaneous at room temperature. The isothermal and kinetic values showed that the adsorption by synthesized foams follows a second order kinetic and obeys the Langmuir isothermal model. The foams showed a high tendency for removing multi metal ions present in a real sample of wastewater. The original nature of the starting material used in making the foam, cost and the obtained results showed the potential of using the foam in a large-scale plants of wastewater purification.
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Affiliation(s)
- Isra Ishraydeh
- Chemistry Department, Faculty of Science, An-Najah National University, P.O. Box 7, Nablus, Palestine
| | - Othman Hamed
- Chemistry Department, Faculty of Science, An-Najah National University, P.O. Box 7, Nablus, Palestine.
| | | | - Shehdeh Jodeh
- Chemistry Department, Faculty of Science, An-Najah National University, P.O. Box 7, Nablus, Palestine.
| | - Khalil Azzaoui
- Laboratory of Engineering, Electrochemistry, Modeling and Environment, Faculty of Sciences, Sidi Mohamed Ben Abdellah University, 30000, Fez, Morocco
- Euro-Mediterranean University of Fes, BP 15, 30070, Fes, Morocco
| | - Abdelfattah Hasan
- Department of Civil Engineering, An-Najah National University, P.O. Box 7, Nablus, Palestine
| | - Mohyeddin Assali
- Department of Pharmacy, An-Najah National University, P.O. Box 7, Nablus, Palestine
| | - Ataa Jaseer
- Chemistry Department, Faculty of Science, An-Najah National University, P.O. Box 7, Nablus, Palestine
| | - Waseem Mansour
- Chemistry Department, Faculty of Science, An-Najah National University, P.O. Box 7, Nablus, Palestine
| | | | - Zehra Semra Can
- Environmental Engineering Department, Marmara University, Istanbul, Turkey
| | - Manuel Algarra
- INAMA2-Institute for Advanced Materials and Mathematics, Department of Sciences, Public University of Navarre, Campus de Arrosadia, 31006, Pamplona, Spain
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13
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Li P, Jiang XC, Song WM, Zhang LY, Xu YJ, Liu Y, Zhu P. An intumescent flame-retardant system based on carboxymethyl cellulose for flexible polyurethane foams with outstanding flame retardancy, antibacterial properties, and mechanical properties. Int J Biol Macromol 2023; 240:124387. [PMID: 37040855 DOI: 10.1016/j.ijbiomac.2023.124387] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 03/30/2023] [Accepted: 04/05/2023] [Indexed: 04/13/2023]
Abstract
A novel and eco-friendly intumescent flame-retardant system based on sodium carboxymethyl cellulose (CMC) was established for wide-used flexible polyurethane foams (FPUFs). FPUF-(APP6CMC1)GN1 with extremely uniform coatings extinguished and reached the UL-94 V-0 rating, and presented an improvement of thermal insulation properties. Moreover, there was a 58 % reduction in peak heat release rate for FPUF-(APP6CMC1)GN1 compared with that of FPUF, and the microstructure analysis of char residues indicated that a perfect intumescent char layer had formed on the surface of FPUFs. Especially, CMC and GN enhanced the compactness and stability of char layers. Therefore, little volatile production was generated under the protection of physical layers in the high temperature as evaluated during the thermal degradation processes. Meanwhile, the flame-retardant FPUFs remained the ideal mechanical properties and obtained excellent antibacterial properties, and the antibacterial rates of E.coli and S.aureus were 99.9 % (FPUF-(APP6CMC1)GN1). This work provides an eco-friendlier strategy for the design of multi-function FPUFs.
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Affiliation(s)
- Ping Li
- College of Textiles & Clothing, Institute of Functional Textiles and Advanced Materials, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), State Key Laboratory of Bio-Fibers and Eco-textiles, Qingdao University, Qingdao 266071, China
| | - Xu-Chen Jiang
- College of Textiles & Clothing, Institute of Functional Textiles and Advanced Materials, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), State Key Laboratory of Bio-Fibers and Eco-textiles, Qingdao University, Qingdao 266071, China
| | - Wan-Meng Song
- College of Textiles & Clothing, Institute of Functional Textiles and Advanced Materials, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), State Key Laboratory of Bio-Fibers and Eco-textiles, Qingdao University, Qingdao 266071, China
| | - Li-Yao Zhang
- College of Textiles & Clothing, Institute of Functional Textiles and Advanced Materials, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), State Key Laboratory of Bio-Fibers and Eco-textiles, Qingdao University, Qingdao 266071, China
| | - Ying-Jun Xu
- College of Textiles & Clothing, Institute of Functional Textiles and Advanced Materials, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), State Key Laboratory of Bio-Fibers and Eco-textiles, Qingdao University, Qingdao 266071, China
| | - Yun Liu
- College of Textiles & Clothing, Institute of Functional Textiles and Advanced Materials, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), State Key Laboratory of Bio-Fibers and Eco-textiles, Qingdao University, Qingdao 266071, China.
| | - Ping Zhu
- College of Textiles & Clothing, Institute of Functional Textiles and Advanced Materials, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), State Key Laboratory of Bio-Fibers and Eco-textiles, Qingdao University, Qingdao 266071, China
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14
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Rub HA, Deghles A, Hamed O, Azzaoui K, Hammouti B, Taleb M, Berisha A, Dagdag O, Mansour W, Hacıosmanoğlu GG, Can ZS, Rhazi L. Cellulose based polyurethane with amino acid functionality: Design, synthesis, computational study and application in wastewater purification. Int J Biol Macromol 2023; 239:124328. [PMID: 37019199 DOI: 10.1016/j.ijbiomac.2023.124328] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 03/27/2023] [Accepted: 03/31/2023] [Indexed: 04/05/2023]
Abstract
Contamination in water is due to various environmental pollutants from natural and anthropogen activities. To remove toxic metals from contaminated water, we developed a novel adsorbent in foam form based on an olive industry waste material. The foam synthesis involved oxidation of cellulose extracted from the waste to dialdehyde, functionalization of the cellulose dialdehyde with an amino acid group, reacting the functionalized cellulose with hexamethylene diisocyanate and p-phenylene diisocyanate to produce the target polyurethanes Cell-F-HMDIC and Cell-F-PDIC, respectively. The optimum condition for lead(II) adsorption by Cell-F-HMDIC and Cell-F-PDIC were determined. The foams show the ability to quantitatively remove most of metal ions present in a real sample of sewage. The kinetic and thermodynamic studies confirmed a spontaneous metal ion binding to the foams with a second pseudo-order adsorption rate. The adsorption study revealed it obeys the Langmuir isotherm model. The experimental Qe values of both foams Cell-F-PDIC and Cell-F-HMDIC were 2.1929 and 2.0345 mg/g, respectively. Monte Carlo (MC) and Dynamic (MD) and simulations showed excellent affinity of both foams for lead ions with high adsorption negative energy value indicating vigorous interactions of Pb(II) with the adsorbent surface. The results indicate the usefulness of the developed foam in commercial applications. ENVIRONMENTAL IMPLICATION: Elimination of metal ions from contaminated environments is important for a number of reasons. They are toxic to humans via interaction with biomolecules, resulting in disruption of the metabolism and biological activities of many proteins. They are toxic to plants. Industrial effluents and/or wastewater discharged from production processes, contain a considerable amount of metal ions. In this work, the use of naturally produced materials, such as olive waste biomass, as adsorbents for environmental remediation has received great attention. This biomass represents unused resources and presents serious disposal problems. We demonstrated that such materials are capable of selectively adsorbing metal ions.
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15
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Liu WX, Zhou WN, Song S, Zhao YG, Lu Y. Preparation and Characterization of Nano-Fe 3O 4 and Its Application for C18-Functionalized Magnetic Nanomaterials Used as Chromatographic Packing Materials. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1111. [PMID: 36986005 PMCID: PMC10058610 DOI: 10.3390/nano13061111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/11/2023] [Accepted: 03/16/2023] [Indexed: 06/18/2023]
Abstract
A new type of magnetic nanomaterial with Fe3O4 as the core and organic polymer as the shell was synthesized by seed emulsion polymerization. This material not only overcomes the problem of insufficient mechanical strength of the organic polymer, it also solves the problem that Fe3O4 is prone to oxidation and agglomeration. In order to make the particle size of Fe3O4 meet the requirement of the seed, the solvothermal method was used to prepare Fe3O4. The effects of the reaction time, amount of solvent, pH value, and polyethylene glycol (PEG) on the particle size of Fe3O4 were investigated. In addition, in order to accelerate the reaction rate, the feasibility of preparing Fe3O4 by microwave was studied. The results showed that under the optimum conditions, the particle size of Fe3O4 could reach 400 nm and had good magnetic properties. After three stages of oleic acid coating, seed emulsion polymerization, and C18 modification, the obtained C18-functionalized magnetic nanomaterials were used for the preparation of the chromatographic column. Under optimal conditions, stepwise elution significantly shortened the elution time of sulfamethyldiazine, sulfamethazine, sulfamethoxypyridazine, and sulfamethoxazole while still achieving a baseline separation.
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Affiliation(s)
- Wen-Xin Liu
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China; (W.-X.L.); (S.S.)
- College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Wei-Na Zhou
- College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Shuang Song
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China; (W.-X.L.); (S.S.)
| | - Yong-Gang Zhao
- College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Yin Lu
- College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China
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16
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Du N, Huang LY, Xiong YS, Tian R, Yin JY, Cao DY, Hu DB, Lu HQ, Li W, Li K. Micro-mechanism insights into the adsorption of anionic dyes using quaternary ammonium-functionalised chitosan aerogels. Carbohydr Polym 2023; 313:120855. [PMID: 37182955 DOI: 10.1016/j.carbpol.2023.120855] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 03/13/2023] [Accepted: 03/25/2023] [Indexed: 04/03/2023]
Abstract
The development of adsorbents with outstanding adsorption capacities, wide versatility, and excellent recyclability for the removal of organic dyes remains a challenge. In this study, a quaternised chitosan-based aerogel (QCSA) was fabricated via a facile method to effectively treat concomitant anionic dyes. Porous QCSA with high hydrophilicity, nontoxicity, excellent thermal stability, and sustainability exhibits adsorption properties superior to most previously reported adsorbents. The equilibrium adsorption capacities for Congo red, Sunset yellow, and Methyl orange were 1259.6, 550.2, and 607.5 mg/g, respectively. Notably, the spent QCSA exhibits excellent cyclic performance. The multilayer adsorption, external-internal mass transfer resistance, and adsorption on the active site models were employed to enable a more accurate description of the dynamic characteristics, confirming that double-layer chemisorption was the dominant process. A quantitative analysis of the electrostatic potential and the independent gradient model further verified that electrostatic interactions, hydrogen bonding, and van der Waals forces led to the highly efficient adsorption of dye molecules. Therefore, the eco-friendly and recyclable QCSA is a promising adsorbent for trapping anionic dyes from aquatic systems.
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17
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Salahat A, Hamed O, Deghles A, Azzaoui K, Qrareya H, Assali M, Mansour W, Jodeh S, Hacıosmanoğlu GG, Can ZS, Hammouti B, Nandiyanto ABD, Ayerdi-Gotor A, Rhazi L. Olive Industry Solid Waste-Based Biosorbent: Synthesis and Application in Wastewater Purification. Polymers (Basel) 2023; 15:polym15040797. [PMID: 36850079 PMCID: PMC9960764 DOI: 10.3390/polym15040797] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 01/28/2023] [Accepted: 01/30/2023] [Indexed: 02/08/2023] Open
Abstract
In this work, we present a process for converting olive industry solid waste (OISW) into a value-added material with ionic receptors for use in the removal of toxic metal ions from wastewater. This 3D polymer is a promising adsorbent for large-scale application, since it is a low-cost material made from agricultural waste and showed exceptional performance. The synthesis of the network polymer involved the carboxymethylation of OISW and curing of the carboxymethylated OISW at an elevated temperature to promote the formation of ester linkages between OISW's components. FT-IR, atomic force microscopy, and thermal analysis were performed on the crosslinked product. The adsorption efficiency of the crosslinked carboxymethylated OISW toward Pb(II), Cu(II), and other toxic metal ions present in sewage was evaluated as a function of adsorbent dose, temperature, pH, time, and initial metal ion. The percentage removal of about 20 metal ions present in a sewage sample collected from a sewer plant located in the Palestinian Territories was determined. The adsorption efficiency did not drop even after six cycles of use. The kinetic study showed that the adsorption process follows the Langmuir isotherm model and the second-order adsorption rate. The experimental Qe values of 13.91 and 13.71 mg/g were obtained for Pb(II) and Cu(II) removal, respectively. The thermodynamic results confirm the spontaneous metal bonding to the receptor sites of the crosslinked carboxymethylated OISW.
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Affiliation(s)
- Angham Salahat
- Chemistry Department, Faculty of Science, An-Najah National University, Nablus P.O. Box 7, Palestine
| | - Othman Hamed
- Chemistry Department, Faculty of Science, An-Najah National University, Nablus P.O. Box 7, Palestine
- Correspondence: (O.H.); (K.A.); (L.R.)
| | - Abdalhadi Deghles
- Scientific Research Department, Istiqlala University, Jericho P.O. Box 10, Palestine
| | - Khalil Azzaoui
- Laboratory of Engineering, Electrochemistry, Modeling and Environment, Faculty of Sciences, Sidi Mohamed Ben Abdellah University, Fez 30000, Morocco
- Correspondence: (O.H.); (K.A.); (L.R.)
| | - Hisham Qrareya
- Industrial Chemistry Department, Arab American University, Jenin P.O Box 240, Palestine
| | - Mohyeddin Assali
- Department of Pharmacy, An-Najah National University, Nablus P.O. Box 7, Palestine
| | - Waseem Mansour
- Chemistry Department, Faculty of Science, An-Najah National University, Nablus P.O. Box 7, Palestine
| | - Shehdeh Jodeh
- Chemistry Department, Faculty of Science, An-Najah National University, Nablus P.O. Box 7, Palestine
| | | | - Zehra Semra Can
- Environmental Engineering Department, Marmara University, Istanbul 34840, Turkey
| | - Belkheir Hammouti
- Laboratory of Applied Chemistry and Environment LCAE, Faculty of Sciences, First Mohammed University, Oujda 60000, Morocco
| | | | - Alicia Ayerdi-Gotor
- Institut Polytechnique UniLaSalle, 19 Rue Pierre Waguet, BP 30313, 60026 Beauvais, France
| | - Larbi Rhazi
- Institut Polytechnique UniLaSalle, Université d’Artois, ULR 7519, 19 Rue Pierre Waguet, BP 30313, 60026 Beauvais, France
- Correspondence: (O.H.); (K.A.); (L.R.)
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18
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Xu M, Qin Y, Huang Q, Beiyuan J, Li H, Chen W, Wang X, Wang S, Yang F, Yuan W, Wang H. Arsenic adsorption by different Fe-enriched biochars conditioned with sulfuric acid. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:16398-16407. [PMID: 36181599 DOI: 10.1007/s11356-022-23123-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
In this study, ferric chloride and sulfuric acid were used to increase the Fe-containing minerals on the biochar surface before a pyrolysis at 600 °C. The pristine and Fe-modified biochars prepared at different concentrations of sulfuric acid (50FBC and 72FBC) were characterized and analyzed, and their capacity of As(V) adsorption under various pH and ionic strength were evaluated. The results showed that the maximum adsorption capacities of As(V) calculated by the Langmuir model for 50FBC and 72FBC are 10.33 and 15.61 mg g-1, respectively, which are enhanced by 5.0 and 7.8 times compared with the pristine biochar. The higher dosage of H2SO4 (72%) used in the modification leads to a better adsorption capacity of As, especially under neutral to alkaline conditions (7.0 < pH < 10.0). It might result from the increased amounts of Fe-containing minerals formed on the biochar surface, and the enriched functional groups such as phenolic hydroxyl and carboxyl, resulting in the resistance to alkaline conditions. Overall, the Fe-modified biochar, especially 72FBC, had good potential as an environmentally friendly adsorbent for removing As from contaminated water under a wider pH range.
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Affiliation(s)
- Man Xu
- School of Environmental and Chemical Engineering, Foshan University, Guangdong, 528000, Foshan, China
| | - Yiyin Qin
- School of Environmental and Chemical Engineering, Foshan University, Guangdong, 528000, Foshan, China
- School of Food Science and Technology, Foshan University, Foshan, 528000, China
| | - Qiqi Huang
- School of Environmental and Chemical Engineering, Foshan University, Guangdong, 528000, Foshan, China
- School of Food Science and Technology, Foshan University, Foshan, 528000, China
| | - Jingzi Beiyuan
- School of Environmental and Chemical Engineering, Foshan University, Guangdong, 528000, Foshan, China.
- Foshan Engineering and Technology Research Center for Contaminated Soil Remediation, School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, China.
| | - Haiping Li
- School of Environmental and Chemical Engineering, Foshan University, Guangdong, 528000, Foshan, China
| | - Wusen Chen
- School of Environmental and Chemical Engineering, Foshan University, Guangdong, 528000, Foshan, China
| | - Xiaoying Wang
- School of Environmental and Chemical Engineering, Foshan University, Guangdong, 528000, Foshan, China
| | - Shifei Wang
- School of Environmental and Chemical Engineering, Foshan University, Guangdong, 528000, Foshan, China
| | - Fuguo Yang
- School of Environmental and Chemical Engineering, Foshan University, Guangdong, 528000, Foshan, China
- Foshan Engineering and Technology Research Center for Contaminated Soil Remediation, School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, China
| | - Wenbing Yuan
- School of Environmental and Chemical Engineering, Foshan University, Guangdong, 528000, Foshan, China
| | - Hailong Wang
- School of Environmental and Chemical Engineering, Foshan University, Guangdong, 528000, Foshan, China
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19
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Algamdi M, Alshahrani A, Alsuhybani M. Chitosan grafted tetracarboxylic functionalized magnetic nanoparticles for removal of Pb(II) from an aqueous environment. Int J Biol Macromol 2023; 225:1517-1528. [PMID: 36427619 DOI: 10.1016/j.ijbiomac.2022.11.208] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 11/15/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022]
Abstract
In this study, the chitosan-grafted tetracarboxylic functionalized magnetic nanoparticle (Fe3O4@TCA@CS) was synthesized via in situ co-precipitation process and amidation reaction to improve efficiency of adsorption process and obtain cost-effective adsorbents for removal of toxic Pb(II) metal from aqueous environment. The Fe3O4@TCA@CS nanocomposite was analyzed by FTIR, TEM-EDX, TGA, XRD, BET, and Zeta potential. The performance of Fe3O4@TCA@CS for Pb(II) ions adsorption was achieved as a function of pH, dose, contact time, initial Pb(II) concentration, and temperature. The influence of coexisting ions such as Na+, Ca2+, Mg2+, and Cd2+on removal efficiency of Pb(II) was also investigated. The results revealed that the coexisting ions had little influence on Pb(II) removal efficiency. The pseudo-first-order and Freundlich models were better to describe the adsorption of Pb(II) onto Fe3O4@TCA@CS and the maximum adsorption capacity of Pb(II) was 204.92 mg/g at pH:5.5; adsorbent dose: 0.015 g; and temperature: 298 K. Thermodynamic studies revealed that the Pb(II) adsorption onto Fe3O4@TCA@CS was an exothermic process. In conclusion, the study provides a new, simple, low-cost, and effective chitosan-based magnetic nanocomposite as a promising adsorbent with excellent adsorption capacity, magnetic separation, and reusability for Pb(II) removal from an aqueous environment.
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Affiliation(s)
- Mohammad Algamdi
- King AbdulAziz City for Science and Technology, Riyadh 11442, Saudi Arabia
| | - Ahmed Alshahrani
- National Center for Radiological Applications Technology, King Abdul Aziz City for Science and Technology, Riyadh 11442, Saudi Arabia
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20
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Recent advances in removal of toxic elements from water using MOFs: A critical review. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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21
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Tian R, Liu Y, Cao D, Gai L, Du N, Yin J, Hu D, Lu H, Li W, Li K. Preparation of highly efficient p-doped porous camellia shell-based activated carbon and its adsorption of carotenoids in camellia oil. Front Nutr 2022; 9:1058025. [DOI: 10.3389/fnut.2022.1058025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 10/31/2022] [Indexed: 11/17/2022] Open
Abstract
The vegetable oil industry is limited by the high cost of the refining process, and the camellia shells (CS) are beneficial to the development of the industry as a biomass raw material for camellia oil decolorization. In this study, CS-based p-doped porous activated carbon (CSHAC) obtained after the pyrolysis of H3PO4-laden CS-hydrochar (CSH) was used for the adsorption of carotenoids in camellia oil. The results showed that the adsorption efficiency of CSHAC for carotenoids was 96.5% compared to 67–87% for commercial decolorizers, and exhibited a fast adsorption rate (20 min). The results of adsorption isotherms indicated that the adsorption of carotenoids on CSHAC occurred through a multi-layer process. Furthermore, the analysis of adsorption kinetics showed that the adsorption of carotenoids by CSHAC was a complex process involving physical and chemical reactions, and chemisorption was the dominant kinetic mechanism. This superior performance of CSHAC in adsorbing carotenoids was attributed to its micro-mesoporous structure, hydrophobicity, and numerous active sites.
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22
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Intensified Pb(II) adsorption using functionalized KCC-1 synthesized from rice husk ash in batch and column adsorption studies. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02689-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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Zhao P, Huang Z, Wang P, Wang A. Comparative study on high-efficiency Pb(II) removal from aqueous solutions using coal and rice husk based Humic acids. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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24
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Synthesis of Gum Arabic Magnetic Nanoparticles for Adsorptive Removal of Ciprofloxacin: Equilibrium, Kinetic, Thermodynamics Studies, and Optimization by Response Surface Methodology. SEPARATIONS 2022. [DOI: 10.3390/separations9100322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Given the increasing risks that antibiotic abuse poses to microecology and human health, it is imperative to develop incredibly powerful adsorbents. This study investigated the use of environmentally sustainable polymeric nanocomposite based on gum arabic (GA) and magnetic nanoparticles (MNPs) synthesized via co-precipitation method to form gum arabic magnetitic nanoparticles (GA-MNPs) as an efficient adsorbent for ciprofloxacin (CIP) removal from aqueous solution. The physicochemical properties and morphology of the synthesized GA-MNPs were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and Energy Dispersive X-Ray Analysis (EDX). The experiment was designed by response surface methodology (RSM) and the Central Composite Design (CCD) was utilized to optimize the operating variables: contact time (0–120 min), pH (3–10), adsorbent dosage (0.10–0.40 g/L), and concentration of adsorbate (5–100 mg/L). Results showed that 96.30% was the maximum percentage of CIP removed. The adsorption effect of the CIP molecule on the surface of the GA-MNPs was investigated using regression analysis and analysis of variance. Furthermore, Freundlich Isotherm and Pseudo Second order kinetic equations have the highest consistency with experimental investigations suggesting double-layer adsorption. This implies that chemisorption was the mechanism involved. In addition, the calculated thermodynamic parameters were postulating an exothermic and spontaneous method in nature. Owing to its adsorption selectivity and recyclability, GA-MNPs could be classified as an environmentally friendly, less expensive, and highly efficient promising adsorbent for remediation of CIP from aqueous solution.
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25
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Li X, Zhang J, Jin Y, Liu Y, Li N, Wang Y, Du C, Xue Z, Zhang N, Chen Q. Effect of pH-Dependent Homo/Heteronuclear CAHB on Adsorption and Desorption Behaviors of Ionizable Organic Compounds on Carbonaceous Materials. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12118. [PMID: 36231423 PMCID: PMC9566536 DOI: 10.3390/ijerph191912118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/19/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Herein, the adsorption/desorption behaviors of benzoic acid (BA) and phthalic acid (PA) on three functionalized carbon nanotubes (CNTs) at various pH were investigated, and the charge-assisted H-bond (CAHB) was verified by DFT and FTIR analyses to play a key role. The results indicated that the adsorption order of BA and PA on CNTs was different from Kow of that at pH 2.0, 4.0, and 7.0 caused by the CAHB interaction. The strength of homonuclear CAHB (≥78.96 kJ·mol-1) formed by BA/PA on oxidized CNTs is stronger than that of heteronuclear CAHB formed between BA/PA and amino-functionalized CNTs (≤51.66 kJ·mol-1). Compared with the heteronuclear CAHB (Hysteresis index, HI ≥ 1.47), the stronger homonuclear CAHB leads to clearly desorption hysteresis (HI ≥ 3.51). Additionally, the contribution of homonuclear CAHB (≥52.70%) was also greater than that of heteronuclear CAHB (≤45.79%) at pH 7.0. These conclusions were further confirmed by FTIR and DFT calculation, and the crucial evidence of CAHB formation in FTIR was found. The highlight of this work is the identification of the importance and difference of pH-dependent homonuclear/heteronuclear CAHB on the adsorption and desorption behaviors of ionizable organic compounds on carbonaceous materials, which can provide a deeper understanding for the removal of ionizable organic compounds by designed carbonaceous materials.
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Affiliation(s)
- Xiaoyun Li
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
- International Joint Research Centre of Shaanxi Province for Pollutants Exposure and Eco-Environmental Health, Xi’an 710119, China
| | - Jinlong Zhang
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
| | - Yaofeng Jin
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
| | - Yifan Liu
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
| | - Nana Li
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
| | - Yue Wang
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
| | - Cong Du
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
| | - Zhijing Xue
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
| | - Nan Zhang
- Environmental Protection Department of Mahe Town, Yuyang District, Yulin 719000, China
| | - Qin Chen
- Northwest Land and Resource Research Center, Shaanxi Normal University, Xi’an 710119, China
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Adsorption of Heavy Metals in Contaminated Water Using Zeolite Derived from Agro-Wastes and Clays: A Review. J CHEM-NY 2022. [DOI: 10.1155/2022/4250299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Due to climate change and anthropogenic activities such as agriculture, mining, and urbanization, water contamination has become a very real modern problem. Modern solutions such as activated carbon, reverse osmosis, and ultrafiltration, among others, have been employed in the decontamination of water. These methods are, however, expensive to set up and maintain and therefore have proved a challenge to implement in developing countries. Zeolite materials exhibit excellent structural properties, such as high ion exchange capacity, porosity, and relative surface area, which make them attractive to water decontamination processes. However, conventional zeolites are expensive, and recent research has focused on utilizing low-cost materials such as agro-wastes and clays as raw materials for the synthesis of zeolites. This review aims to discuss the role of low-cost zeolites in their removal of heavy metals and the feasibility of agro-wastes and natural clays in the synthesis of zeolites. Recent research studies based on the synthesis of zeolites from clays and agro-wastes and their application in heavy metal removal have been reviewed and discussed. Agro-wastes such as rice husk ash and sugarcane bagasse ash and layered silicate clays such as kaolinite and smectites are particularly of interest to zeolite synthesis due to their high silica to alumina ratio. Zeolites synthesized through various methods such as hydrothermal, molten salt, and microwave irradiation synthesis have been discussed with their effect on the adsorption of various heavy metals.
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The effect of gelatin as pore expander in green synthesis mesoporous silica for methylene blue adsorption. Sci Rep 2022; 12:15271. [PMID: 36088488 PMCID: PMC9464223 DOI: 10.1038/s41598-022-19615-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 08/31/2022] [Indexed: 11/08/2022] Open
Abstract
AbstractMesoporous silica NSG had been synthesized while employing gelatin as a natural template to successfully increase the particle size and expand the pore diameter of NSG. All silica samples exhibited a similar XRD pattern with a broad peak centred at 2θ = 22.9°, as the characteristic of amorphous silica. FTIR results showed that the reduction of Si–O–Si symmetric stretching vibrations at 1075 cm−1 was due to the use of a high percentage of gelatin. Moreover, TEM analysis displayed the mesoporous channels in the form of a honeycomb structure with a diameter of ± 6 nm. Gelatin enhanced the surface area of silica from 467 to 510 m2/g, the pore volume from 0.64 to 0.72 cc/g and expanded the pore diameter from 3.5 nm to 6.0 nm. The expansion of the ordered mesopores with the increase of P123: gelatin ratios was elucidated by the pore size distribution. The adsorption capacity of methylene blue (MB) was improved on mesoporous silica with an expanded pore dimension to give 168 mg/g adsorption capacity within 70 min.
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Hassan HM, El-Aassar M, El-Hashemy MA, Betiha MA, Alzaid M, Alqhobisi AN, Alzarea LA, Alsohaimi IH. Sulfanilic acid-functionalized magnetic GO as a robust adsorbent for the efficient adsorption of methylene blue from aqueous solution. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119603] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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29
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Designing of hydroxyl terminated triazine-based dendritic polymer/halloysite nanotube as an efficient nano-adsorbent for the rapid removal of Pb(II) from aqueous media. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119407] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Co-Pyrolysis of Cotton Stalks and Low-Density Polyethylene to Synthesize Biochar and Its Application in Pb(II) Removal. Molecules 2022; 27:molecules27154868. [PMID: 35956817 PMCID: PMC9369942 DOI: 10.3390/molecules27154868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/20/2022] [Accepted: 07/26/2022] [Indexed: 11/22/2022] Open
Abstract
It is inevitable that reclaimed cotton stalks will contain a certain amount of plastic film due to the wide application of plastic mulching during the process of cotton cultivation, and this makes it inappropriate to return it to the field or for it to be processed into silage. In this study, biochars were prepared by the co-pyrolysis of cotton stalk with low-density polyethylene (LDPE) in the proportions of 1:0, 3:1, 2:1, and 1:1 (w/w) at 400 °C, 450 °C, and 500 °C and maintaining them for 1 h. The effects of the co-pyrolysis of cotton stalk with LDPE on the properties of biochars (e.g., pH, yield, elemental analysis, specific surface area, etc.) and the Pb(II) removal capacity were analyzed. Co-pyrolysis cotton stalks with LDPE could delay the decomposition of LDPE but could promote the decomposition of cotton stalk. At 400 °C and 450 °C, the addition of LDPE decreased the H/C ratio, while no significant difference was found between the pristine biochar and the blended biochar pyrolyzed at 500 °C. An FTIR analysis indicated that the surface functional groups of biochar were not affected by the addition of LDPE, except for CH3 and CH2. The results of the SEM showed that LDPE could cover the surface of biochar when pyrolyzed at 400 °C, while many macropores were found in the blended biochar that was pyrolyzed at 450 °C and 500 °C, thus increasing its surface area. The blended biochar that was pyrolyzed at 500 °C was more effective in the removal of Pb(II) than the cotton-stalk-derived biochar, which was dominated by monolayer adsorption with a maximum adsorption capacity of approximately 200 mg·g−1. These results suggested that the co-pyrolysis of cotton stalks and LDPE may be used to produce biochar, which is a cost-effective adsorbent for heavy metal removal from aqueous solutions.
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Zandi‐Mehri E, Taghavi L, Moeinpour F, Khosravi I, Ghasemi S. Modification of halloysite nanotubes by hydroxyl terminated triazine‐based dendritic polymer for efficient adsorptive removal of Cd (II) from aqueous media. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Elham Zandi‐Mehri
- Department of Environment, Qeshm Branch Islamic Azad University Qeshm Iran
| | - Lobat Taghavi
- Department of Natural Resources and Environment, Science and Research Branch Islamic Azad University Tehran Iran
| | - Farid Moeinpour
- Department of Chemistry, Bandar Abbas Branch Islamic Azad University Bandar Abbas Iran
| | - Iman Khosravi
- Department of Chemistry, Qeshm Branch Islamic Azad University Qeshm Iran
| | - Saber Ghasemi
- Department of Environment, Bandar Abbas Branch Islamic Azad University Bandar Abbas Iran
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Zhang J, Zheng H, Li X, Li N, Liu Y, Li T, Wang Y, Xing B. Direct Spectroscopic Evidence for Charge-Assisted Hydrogen-Bond Formation between Ionizable Organic Chemicals and Carbonaceous Materials. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:9356-9366. [PMID: 35729743 DOI: 10.1021/acs.est.2c00417] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The direct evidence for the formation of charge-assisted hydrogen bond (CAHB) between the charged groups of ionizable organic chemicals (IOCs) and carbonaceous materials with similar proton affinity remains elusive. We therefore selected three pharmaceutical contaminants (PCs) as representative IOCs to provide the direct evidence of CAHB formation between IOCs and functionalized carbon nanotubes (CNTs) and its intensity/contribution to PC sorption on CNTs by NMR, FTIR, and DFT analyses. Sorption of PCs on functionalized CNTs resulted in the FTIR characteristic peak that appeared at a higher frequency (3787 cm-1) and the 1H NMR characteristic peak that emerged at an extremely low-field region (<18.0 ppm), which can be used as the direct spectroscopic evidence for CAHB formation. Both homonuclear CAHB (HM-CAHB, e.g., [O-H···O]-) and heteronuclear CAHB (HT-CAHB, e.g., [N+-H···O-]/[O-H···N]+) exhibited a much higher sorption energy (|Eads| ≥ 56.24 kJ/mol) than ordinary hydrogen bond (OHB, |Eads| ≤ 6.136 kJ/mol), leading to a greater sorption contribution (HM-/HT-CAHB ≥ 42.3%, OHB ≤ 36.5%) and irreversibility (hysteresis index: HM-/HT-CAHB ≥ 1.69, OHB ≤ 0.43) of PCs on CNTs. This work presents the direct evidence for CAHB formation between IOCs and CNTs, which is significant for understanding and predicting the environmental fate and risk of IOCs, thus providing new insights for controlling their pollution using specifically designed carbonaceous materials.
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Affiliation(s)
- Jinlong Zhang
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
- International Joint Research Centre of Shaanxi Province for Pollutants Exposure and Eco-environmental Health, Xi'an 710119, China
| | - Hao Zheng
- Institute of Coastal Environmental Pollution Control, Ministry of Education Key Laboratory of Marine Environment and Ecology, Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao 266100, China
| | - Xiaoyun Li
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
- International Joint Research Centre of Shaanxi Province for Pollutants Exposure and Eco-environmental Health, Xi'an 710119, China
| | - Nana Li
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
| | - Yifan Liu
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
| | - Tao Li
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
| | - Yue Wang
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
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Sulfhydryl Functionalized Magnetic Chitosan as an Efficient Adsorbent for High-Performance Removal of Cd(II) from Water: Adsorption Isotherms, Kinetic, and Reusability Studies. ADSORPT SCI TECHNOL 2022. [DOI: 10.1155/2022/2248249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this study, dimercaptosuccinic acid-functionalized magnetic chitosan (Fe3O4@CS@DMSA) was synthesized via in situ coprecipitation process and amidation reaction, aiming to eliminate cadmium (Cd(II)) ions from an aqueous environment. The structure, morphology, and particle size of the Fe3O4@CS@DMSA adsorbent were investigated using FTIR, TEM, EDX, TGA, zeta potential, and XRD techniques, and the obtained results approved the successful synthesis of the Fe3O4@CS@DMSA nanocomposite. The influence of external adsorption conditions such as pH solution, adsorbent mass, initial Cd(II) concentration, temperature, and contact time on the adsorption process was successfully achieved. Accordingly, pH: 7.6, contact time: 210 min, and adsorbent mass:10 mg were found to be the optimal conditions for best removal. The adsorption was analyzed using nonlinear isotherm and kinetic models. The outcomes revealed that the adsorption process obeyed the Langmuir and the pseudo-first-order models. The maximum adsorption capacity of Fe3O4@CS@DMSA toward Cd(II) ion was 314.12 mg/g. The adsorption mechanism of Cd(II) on Fe3O4@CS@DMSA nanocomposite is the electrostatic interaction. The reusability test of Fe3O4@CS@DMSA nanocomposite exhibited that the adsorption efficiency was 72% after the 5th cycle. Finally, this research indicates that the Fe3O4@CS@DMSA exhibited excellent characteristics such as high adsorption capacity, effective adsorption-desorption results, and easy magnetic separation and thus could be an effective adsorbent for removing Cd(II) ions from aqueous solutions.
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Nairat N, Hamed O, Berisha A, Jodeh S, Algarra M, Azzaoui K, Dagdag O, Samhan S. Cellulose polymers with β-amino ester pendant group: design, synthesis, molecular docking and application in adsorption of toxic metals from wastewater. BMC Chem 2022; 16:43. [PMID: 35689266 PMCID: PMC9188135 DOI: 10.1186/s13065-022-00837-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/31/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cellulose polymers with multidentate chelating functionalities that have high efficiency for toxic metal ions present in water were designed, synthesized, and analyzed. The synthesis was carried out by reacting microcrystalline cellulose extracted from the solid waste of the olive industry with tert-Butyl acetoacetate (Cell-AA), produced cellulose with β-ketoester functionality was then reacted with aniline and the amino acid glycine to produce Cell-β-AN and Cell-β-GL, respectively. RESULTS The adsorption efficiency of the three polymers toward Pb(II) and various toxic metal ions present in sewage was evaluated as a function of adsorbent dose, time, temperature, pH value, and initial ion concentration to determine optimum adsorption conditions. The three polymers showed excellent efficiency toward about 20 metal ions present in a sewage sample collected from the sewer. The adsorption process follows the Langmuir adsorption isotherm model with a second-order of adsorption rate, the calculated qe values (2.675, 15.252, 20.856 mg/g) were close to the experimental qe values (2.133, 13.91, 18.786 mg/g) for the three polymers Cell-AA, Cell-β-AG and Cell-β-AN, respectively. Molecular Dynamic (MD) and Monte Carlo (MC) simulations were performed on the three polymers complexed with Pb(II). CONCLUSION The waste material of the olive industry was used as a precursor for making the target cellulose polymers with β-Amino Ester Pendant Group. The polymer was characterized by SEM, proton NMR, TGA, and FT-IR spectroscopy. The efficacy of adsorption was quantitative for metal ions present in a real sample of wastewater and the efficiency didn't drop even after 7 cycles of use. The results indicate the existence of strong complexation. The thermodynamic study results showed a spontaneous bonding between of Pb(II) and the polymers pendant groups expressed by the negative value of the Gibbs free energy.
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Affiliation(s)
- Noor Nairat
- Chemistry Department, Faculty of Science, An-Najah National University, P.O. Box 7, Nablus, Palestine
| | - Othman Hamed
- Chemistry Department, Faculty of Science, An-Najah National University, P.O. Box 7, Nablus, Palestine.
| | - Avni Berisha
- Department of Chemistry, Faculty of Natural and Mathematics Science, University of Prishtina, Prishtina, 10000, Kosovo.,Materials Science-Nanochemistry Research Group, NanoAlb-Unit of Albanian Nanoscience and Nanotechnology, 1000, Tirana, Albania
| | - Shehdeh Jodeh
- Chemistry Department, Faculty of Science, An-Najah National University, P.O. Box 7, Nablus, Palestine.
| | - Manuel Algarra
- Department of Science, INAMAT2 Institute for Advanced Materials and Mathematics, Public University of Navarra, Campus of Arrosadia, 31006, Pamplona, Spain
| | - Khalil Azzaoui
- Laboratory of Mineral Solid and Analytical Chemistry LMSAC, Department of Chemistry, Faculty of Sciences, Mohamed 1st University, P.O. Box 717, Oujda, Morocco
| | - Omar Dagdag
- Institute of Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of South Africa, Johannesburg, South Africa
| | - Subhi Samhan
- Palestine Water Authority, Ramallah, 00001, Palestine
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Shi T, Xie Z, Mo X, Feng Y, Peng T, Song D. Highly Efficient Adsorption of Heavy Metals and Cationic Dyes by Smart Functionalized Sodium Alginate Hydrogels. Gels 2022; 8:gels8060343. [PMID: 35735687 PMCID: PMC9222840 DOI: 10.3390/gels8060343] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 05/21/2022] [Accepted: 05/25/2022] [Indexed: 02/01/2023] Open
Abstract
In this paper, functionalized sodium alginate hydrogel (FSAH) was prepared to efficiently adsorb heavy metals and dyes. Hydrazide-functionalized sodium alginate (SA) prepared hydrazone groups to selectively capture heavy metals (Pb2+, Cd2+, and Cu2+), and another functional group (dopamine grafting), serves as sites for adsorption methylene blue (MB), malachite green (MG), crystal violet (CV). Thermodynamic parameters of adsorption indicated that the adsorption process is endothermic and spontaneous. The heavy metals adsorption by FSAH was physical adsorption mainly due to ΔHθ < 40 kJ/mol, and the adsorption of cationic dyes fitted with the Langmuir models, which indicated that the monolayer adsorption is dominated by hydrogen bonds, electrostatic interactions, and π-π interactions. Moreover, the adsorption efficiency maintained above 70% after five adsorption-desorption cycles. To sum up, FSAH has great application prospect.
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Affiliation(s)
- Tianzhu Shi
- Department of Brewing Engineering, Moutai Institute, Renhuai 564500, China; (X.M.); (Y.F.); (T.P.); (D.S.)
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China;
- Correspondence: ; Tel.: +86-185-8642-0308
| | - Zhengfeng Xie
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China;
| | - Xinliang Mo
- Department of Brewing Engineering, Moutai Institute, Renhuai 564500, China; (X.M.); (Y.F.); (T.P.); (D.S.)
| | - Yulong Feng
- Department of Brewing Engineering, Moutai Institute, Renhuai 564500, China; (X.M.); (Y.F.); (T.P.); (D.S.)
| | - Tao Peng
- Department of Brewing Engineering, Moutai Institute, Renhuai 564500, China; (X.M.); (Y.F.); (T.P.); (D.S.)
| | - Dandan Song
- Department of Brewing Engineering, Moutai Institute, Renhuai 564500, China; (X.M.); (Y.F.); (T.P.); (D.S.)
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Li J, Zhou C, Yang H, Wu X, Yan L. Two near-infrared fluorescent probes based on dicyanoisfluorone for rapid monitoring of Zn 2+and Pb 2. Methods Appl Fluoresc 2022; 10. [PMID: 35588718 DOI: 10.1088/2050-6120/ac7199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 05/19/2022] [Indexed: 11/11/2022]
Abstract
Zinc (Zn2+) and lead (Pb2+) ions in the environment have important effects on human health and environmental safety. Therefore, it is of great significance to realize convenient and reliable detection of these two metal ions. In this study, two near-infrared fluorescent probes for the fast detection of Zn2+ and Pb2+ were synthesized by a simple Schiff base reaction between the dicyanoisophorone skeleton and carbohydrazide derivatives. Among them, the probe with the thiophene-2-carbohydrazide group showed a selective fluorescence response to Zn2+ and Pb2+ with a maximum emission wavelength of 670 nm. And the detection limits of the probe for Zn2+ and Pb2+ were 1.59 nM and 1.65 nM, respectively. In contrast the probe modified by the furan-2-carbohydrazide group achieved quantitative detection of Zn2+, with a detection limit of 2.7 nM. These results were attributed to the fact that the probes bind to Zn2+ and Pb2+ in stoichiometric ratios of 1:1, blocking the intramolecular PET effect. Furthermore, these two probes can be recycled through the action of EDTA and have been successfully used to detect Zn2+ and Pb2+ in real water samples.
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Affiliation(s)
- Jia Li
- Guilin University of Technology, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541006, P.R. China, Guilin, 541006, CHINA
| | - Cuiping Zhou
- Guilin University of Technology, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541006, P.R. China, Guilin, 541006, CHINA
| | - Hong Yang
- Guilin University of Technology, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541006, P.R. China, Guilin, 541006, CHINA
| | - Xiongzhi Wu
- Guilin University of Technology, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541006, P.R. China, Guilin, 541006, CHINA
| | - Liqiang Yan
- Guilin University of Technology, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541006, P.R. China, Guilin, 541006, CHINA
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Zhang Y, You C, Ren M, Liu M, Xu X, Zhang Y, Lin A, Pei Y, Yuan D, Cui J. Ion exchange membrane optimized light-driven photoelectrochemical unit for efficiency simultaneous organic degradation and metal recovery from the mine wastewater. JOURNAL OF HAZARDOUS MATERIALS 2022; 429:128352. [PMID: 35121299 DOI: 10.1016/j.jhazmat.2022.128352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 01/11/2022] [Accepted: 01/23/2022] [Indexed: 06/14/2023]
Abstract
Resource recovery from wastewater is a promising and challenging topic. Herein, a well-designed ion exchange membrane optimized light-driven photoelectrochemical unit (MPECS) was constructed to reduce the effect of inorganic salt on the photoelectrochemical performance of the photoanode. TiO2/carbon dots/WO3 (TCDW) photoanode with the indirect Z-scheme heterojunction structure was successfully fabricated, achieving a strong light harvest performance (10.82%) and a high photocurrent density (5.39 mA/cm2). For the simulated solution (0.01 M phenol and 0.01 M CuSO4), the phenol degradation and Cu recovery efficiencies reached 99.67% and 62.20% in 60 min, respectively, and the corresponding photoelectric conversion efficiency (PECE) reached 4.64% in the TCDW/Pt-based MPECS. For the actual Cu-laden mine wastewater, over 98% of inorganic salt was removed. Compared to the traditional photoelectrochemical system (PECS), the COD removal and Cu recovery efficiencies were further improved by 23.77% and 49.41% in MPECS, respectively. The results exhibited a promising light-driven mine wastewater treatment technology.
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Affiliation(s)
- Yinjie Zhang
- Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Chang You
- School of Urban Economics and Public Administration, Capital University of Economics and Business, Beijing 100070, PR China
| | - Meng Ren
- Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Meng Liu
- Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Xin Xu
- Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Yu Zhang
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Aijun Lin
- Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Yuansheng Pei
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Donghai Yuan
- Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, PR China.
| | - Jun Cui
- Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China.
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Ulfa M, Masykur A, Nofitasari AF, Sholeha NA, Suprapto S, Bahruji H, Prasetyoko D. Controlling the Size and Porosity of Sodalite Nanoparticles from Indonesian Kaolin for Pb2+ Removal. MATERIALS 2022; 15:ma15082745. [PMID: 35454437 PMCID: PMC9024775 DOI: 10.3390/ma15082745] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/24/2022] [Accepted: 04/01/2022] [Indexed: 01/16/2023]
Abstract
Mesoporous sodalite nanoparticles were directly synthesized from Indonesian kaolin with the addition of CTABr as a mesopore template. The studies highlighted the importance of aging time (3–12 h) and temperature (50–80 °C) on increasing surface area and mesoporosity of sodalite. Indonesian kaolin was used without pre-treatment and transformed to sodalite following the initial molar composition of 10 Na2O: 2 SiO2: Al2O3: 128 H2O. Characterization data revealed the formation of high surface area sodalite with mesoporosity at increasing aging temperatures and times. The presence of CTABr as templates produced sodalites nanoparticles with smaller aggregates than the non-template sodalite. The sodalite sample obtained at 80 °C of crystallization temperature for 9 h (S80H9) displayed the highest mesopore volume (0.07612 cm3/g) and the highest adsorption capacity of Pb2+ (212.24 mg/g). Pb2+ was suggested to adsorb via ion exchange with the Na+ counter cation and physical adsorption.
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Affiliation(s)
- Maria Ulfa
- Chemistry Education Study Program, Faculty of Teacher Training and Education, Sebelas Maret University, Surakarta 57126, Indonesia
- Correspondence: (M.U.); or (D.P.)
| | - Abu Masykur
- Chemistry Education Study Program, Faculty of Teacher Training and Education, Sebelas Maret University, Surakarta 57126, Indonesia
| | - Amanah Firdausa Nofitasari
- Department of Chemistry, Science Faculty, Sebelas Maret University, Jl Ir Sutami 36A, Surakarta 57126, Indonesia;
| | - Novia Amalia Sholeha
- Department of Chemistry, Science Faculty, Sebelas Maret University, Jl Ir Sutami 36A, Surakarta 57126, Indonesia;
| | - Suprapto Suprapto
- Department of Chemistry, Science Faculty, Sebelas Maret University, Jl Ir Sutami 36A, Surakarta 57126, Indonesia;
| | - Hasliza Bahruji
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS), Keputih, Sukolilo, Surabaya 60111, Indonesia; (A.F.N.); (N.A.S.); (S.S.)
| | - Didik Prasetyoko
- Department of Chemistry, Science Faculty, Sebelas Maret University, Jl Ir Sutami 36A, Surakarta 57126, Indonesia;
- Correspondence: (M.U.); or (D.P.)
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Adsorption of Methylene Blue by Biosorption on Alkali-Treated Solanum incanum: Isotherms, Equilibrium and Mechanism. SUSTAINABILITY 2022. [DOI: 10.3390/su14052644] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
In this study, a new bio-adsorbent (NASIF) was successfully prepared via chemical activation of Solanum incanum (SI) with hydrogen peroxide and sodium hydroxide reagents as an inexpensive and effective adsorbent for the removal of methylene blue (MB) from aqueous media. The morphology of the NASIF adsorbent surface and the nature of the potential MB interactions were examined by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) micrograph. FTIR results suggested that carboxyl, carbonyl, and hydroxyl groups were involved in MB adsorption on the NASIF surface. EDX analysis confirmed the successful increase of oxygen-containing functional groups during the chemical activation. The influence of important factors was studied using the batch method. The results revealed that the maximum removal efficiency was 98% at contact time: 120 min; pH: 6.5, adsorbent dose: 40 mg; and temperature-25 °C. Isothermal behavior was evaluated using three non-linear isotherm models, Langmuir, Freundlich, and D–R isotherm. MB adsorption onto NASIF adsorbent followed the Langmuir isotherm model with maximum monolayer capacity (mg/g) at 25 °C. Meanwhile, the PSO kinetics model was found to be better than PFO kinetic model for describing the adsorption process using kinetic models. Based on the D–R model, the free energy (E, kJ mol−1) values were in the range of 0.090–0.1812 kJ mol−1, which indicated that the MB adsorption onto NASIF may belong to physical adsorption. The adsorption mechanism of MB onto NASIF adsorbent mainly includes electrostatic attraction, π-π interaction, n-π interaction, and H-bonding. The thermodynamic parameters revealed that the adsorption process was a feasibility, spontaneous and exothermic process. Finally, the result of the present work could provide strong evidence of the potential of NASIF adsorbent for eliminating MB from aqueous media.
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Gao J, Song M, Li T, Zhao Y, Wang A. Water-soluble carboxymethyl chitosan (WSCC)-modified single-walled carbon nanotubes (SWCNTs) provide efficient adsorption of Pb(ii) from water. RSC Adv 2022; 12:6821-6830. [PMID: 35424645 PMCID: PMC8981766 DOI: 10.1039/d2ra00066k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 02/23/2022] [Indexed: 12/25/2022] Open
Abstract
Nanocomposites play a key role in the removal of toxic metal(loid)s from environmental water. In this study, we investigated the adsorption capability of water-soluble carboxymethyl chitosan (WSCC)-modified functionally oxidized single walled carbon nanotubes (oSWCNTs) for rapid and efficient removal of toxic Pb(ii) from water. The WSCC–oSWCNTs nanocomposite was prepared by an acid treatment of SWCNTs followed by an ultrasonic dispersion process using WSCC as dispersant. The morphology and chemical characteristics of the WSCC–oSWCNTs nanocomposite were further identified using various characterization techniques (i.e., transmission electron microscopy, TEM; scanning electron microscopy, SEM; Raman spectra; Fourier transform infrared spectroscopy, FTIR; X-ray photoelectron spectroscopy, XPS; nitrogen adsorption–desorption isotherm test). The efficiency of the adsorption process in batch experiments was investigated via determining various factor effects (i.e. WSCC–oSWCNTs nanocomposite concentration, solution pH, initial Pb(ii) concentration, contact time, and reaction temperature). Kinetic results showed that the adsorption process followed a pseudo-second-order, while an isotherm results study showed that the adsorption process followed the Langmuir and Freundlich isotherm models at the same time. In addition, the van't Hoff equation was used to calculate thermodynamic parameters for assessing the endothermic properties and spontaneity of the adsorption process. The WSCC–oSWCNTs nanocomposite manifested a high adsorption capacity for Pb(ii) (113.63 mg g−1) via electrostatic interactions and ion-exchange, as its adsorption rate could reach up to 98.72%. This study, therefore, provides a novel adsorbent for the removal and detection of harmful residues (i.e. toxic metal(loid)s) from environmental water, such as industry wastewater treatment and chemical waste management. A water-dispersible WSCC–oSWCNTs nanocomposite prepared for efficient Pb(ii) uptake from water. The removal efficiency is still higher than 80% after 4 adsorption–desorption cycles, and the Pb(ii) can be adsorbed with high selectivity and stability.![]()
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Affiliation(s)
- Jinling Gao
- College of Science, Heilongjiang Bayi Agricultural University Daqing 163319 China
| | - Mingzhe Song
- College of Science, Heilongjiang Bayi Agricultural University Daqing 163319 China
| | - Tongtong Li
- College of Science, Heilongjiang Bayi Agricultural University Daqing 163319 China
| | - Yuyao Zhao
- College of Science, Heilongjiang Bayi Agricultural University Daqing 163319 China
| | - Anxu Wang
- College of Science, Heilongjiang Bayi Agricultural University Daqing 163319 China
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Shi T, Xie Z, Zhu Z, Shi W, Liu Y, Liu M, Mo X. Effective removal of metal ions and cationic dyes from aqueous solution using different hydrazine-dopamine modified sodium alginate. Int J Biol Macromol 2022; 195:317-328. [PMID: 34914908 DOI: 10.1016/j.ijbiomac.2021.12.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 12/03/2021] [Accepted: 12/05/2021] [Indexed: 12/13/2022]
Abstract
In this paper, DSA-AAD-DA and DSA-TPDH-DA were prepared to effectively remove metal ions and cationic dyes from aqueous solution. The hydrazone structure was prepared by hydrazide-modified SA which captured metal ions selectively, and the remaining functional groups were used as active adsorption sites for cationic dyes. The thermodynamic parameter for the sorption demonstrated the process is endothermic and spontaneous. In single process, the adsorption of metal ions by DSA-AAD-DA and DSA-TPDH-DA correlated well with the Freundlich model through the hydrazone structure coordination and ion exchange which was mainly chemical adsorption, and cationic dyes adsorption correlated well with the Langmuir model which was shown monolayer adsorption was dominant by hydrogen bonding, electrostatic interaction, and π-π interaction. In binary system, the mixed adsorption shown significant antagonism effect in high concentration, but cationic dyes and metal ions in low concentration were efficiently and simultaneously removed, the adsorption ability of DSA-TPDH-DA was much better than DSA-AAD-DA. Moreover, adsorption efficiency can still maintain more than 80% after five times adsorption-desorption recycle. Therefore, DSA-AAD-DA and DSA-TPDH-DA possessed great potential for wastewater treatment.
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Affiliation(s)
- Tianzhu Shi
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China; Department of Brewing Engineering, Moutai Institute, Renhuai, Guizhou 564500, China
| | - Zhengfeng Xie
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China; Research Institute of Industrial Hazardous Waste Disposal and Resource Utilization, Southwest Petroleum University, Chengdu, Sichuan 610500, China.
| | - Zhu Zhu
- Inspection Department, Guizhou Provincial Institute for Quality Inspection and Testing of Liquor Products, Renhuai, Guizhou 564500, China
| | - Wei Shi
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Yucheng Liu
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China; Research Institute of Industrial Hazardous Waste Disposal and Resource Utilization, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Minyao Liu
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Xinliang Mo
- Department of Brewing Engineering, Moutai Institute, Renhuai, Guizhou 564500, China
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Melhi S, Algamdi M, Alqadami AA, Khan MA, Alosaimi EH. Fabrication of magnetically recyclable nanocomposite as an effective adsorbent for the removal of malachite green from water. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2021.11.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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43
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Sadegh N, Haddadi H, Asfaram A. Synthesis of green magnetic biopolymer derived from Oak fruit hull tannin for efficient simultaneous adsorption of a mixture of Malachite Green and Sunset Yellow dyes from aqueous solutions. NEW J CHEM 2022. [DOI: 10.1039/d2nj00994c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the present study, a new bioadsorbent with polyhydroxyphenyl groups was synthesized as a tannin-based magnetic porous organic polymer by using from internal layer of Oak fruit hull (Oak Gal)...
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Zhu L, Yao Y, Chen D, Lan P. The effective removal of Pb 2+ by activated carbon fibers modified by l-cysteine: exploration of kinetics, thermodynamics and mechanism. RSC Adv 2022; 12:20062-20073. [PMID: 35919620 PMCID: PMC9272669 DOI: 10.1039/d2ra01521h] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 06/12/2022] [Indexed: 12/16/2022] Open
Abstract
Herein, we developed a low-cost fabrication route to prepare chemically grafted activated carbon fibers, which effectively removed Pb2+ from solution. Multiple characteristic results indicated that l-cyst-ACF had abundant nitrogen-containing and sulfur-containing functional groups. Based on the XPS and EDS analyses, the capture of Pb2+ was attributed to the abundant adsorption sites on the fiber surface. According to the analysis of the pseudo-second-order kinetic model and the Langmuir isotherm model, the adsorption process could be interpreted as monolayer adsorption and chemisorption, and the equilibrium adsorption capacity was determined to be 136.80 mg g−1 by fitting the pseudo-second-order kinetic model. The maximum adsorption capacity of l-cyst-ACF for Pb2+ was calculated to be 179.53 mg g−1 using the Langmuir model. In addition, the adsorption reaction was endothermic and spontaneous, as evidenced by the thermodynamic parameters. The outcomes of this study provide a low-cost and feasible strategy for the remediation of Pb2+ pollution in the environment. A low-cost fabrication route has been developed to prepare a chemically grafted activated carbon fiber, which effectively removed Pb2+ from solution. Multiple characterisation results indicated that l-cyst-ACF had abundant N-containing and S-containing functional groups.![]()
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Affiliation(s)
- Lingkai Zhu
- College of Materials and Textile Engineering, Jiaxing University, Jiaxing, 314001, China
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Yuyuan Yao
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Dingzhou Chen
- Zhejiang Yana Textile Co., Ltd, Haining 314400, China
| | - Ping Lan
- College of Materials and Textile Engineering, Jiaxing University, Jiaxing, 314001, China
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45
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Miao Y, Peng W, Wang W, Cao Y, Li H, Chang L, Huang Y, Fan G, Yi H, Zhao Y, Zhang T. 3D-printed montmorillonite nanosheets based hydrogel with biocompatible polymers as excellent adsorbent for Pb(Ⅱ) removal. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120176] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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46
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Chen X, Zhang X, Li F, Yang X, Du M, Fan J. Mesoporous maltose/calcium oxalate hybrid material with abundant reaction sites and its efficient Pb( ii) removal from diverse water bodies. NEW J CHEM 2022. [DOI: 10.1039/d2nj01092e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Maltose/calcium oxalate exhibits high capacity and selective adsorption of Pb(ii) due to the synergistic mechanism of ion exchange, electrostatic and complexation.
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Affiliation(s)
- Xinxin Chen
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, P. R. China
| | - Xia Zhang
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, P. R. China
| | - Fei Li
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, P. R. China
| | - Xitong Yang
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, P. R. China
| | - Mengmeng Du
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, P. R. China
| | - Jing Fan
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, P. R. China
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Motaghi H, Arabkhani P, Parvinnia M, Javadian H, Asfaram A. Synthesis of highly porous three-dimensional PVA/GO/ZIF-67 cryogel for the simultaneous treatment of waters contaminated with cadmium (II) and lead (II) heavy metal ions. NEW J CHEM 2022. [DOI: 10.1039/d1nj05418j] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this research, PVA/GO/ZIF-67 cryogel as a highly porous three-dimensional polymeric adsorbent was synthesized by freeze-drying method and applied for the simultaneous removal of Cd2+ and Pb2+ ions from contaminated...
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Mandal S, Calderon J, Marpu SB, Omary MA, Shi SQ. Mesoporous activated carbon as a green adsorbent for the removal of heavy metals and Congo red: Characterization, adsorption kinetics, and isotherm studies. JOURNAL OF CONTAMINANT HYDROLOGY 2021; 243:103869. [PMID: 34418820 DOI: 10.1016/j.jconhyd.2021.103869] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 08/08/2021] [Accepted: 08/09/2021] [Indexed: 06/13/2023]
Abstract
In this study, an effective and green adsorbent was prepared by the self- activation of kenaf fiber and then the kenaf-based activated carbon (KAC) was applied for the removal of lead Pb(II), copper Cu(II), and Congo red (CR) dye from an aqueous solution by the process of adsorption. The surface morphology of mesoporous adsorbent was characterized. The KAC showed good capacity of adsorption of as Pb(II), Cu(II), and anionic dye CR in very short period of agitation. The adsorbent efficiency of metal ions and dye was estimated by varying the adsorbent dose, pH, contact time, initial metals and dye concentration, and temperature. Optimum adsorption of metal ions and CR dye was observed at pH 6, and at pH 4 at 120 min, respectively. The adsorption isotherm was described by the Langmuir and Freundlich isotherm equations. The green adsorbent followed the pseudo-second-order kinetic model with correlation coefficients R2 value >0.99. The increase in adsorption temperature enhanced the adsorption efficiency for both heavy metals and dye. The KAC showed no significant loss of the adsorption capacity after 3 cycles of reuse.
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Affiliation(s)
- Sujata Mandal
- Department of Mechanical Engineering, University of North Texas, TX, USA.
| | - Jose Calderon
- Department of Chemistry, University of North Texas, TX, USA
| | | | | | - Sheldon Q Shi
- Department of Mechanical Engineering, University of North Texas, TX, USA.
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Song Y, Lei C, Yang K, Lin D. Iron-carbon material enhanced electrokinetic remediation of PCBs-contaminated soil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 290:118100. [PMID: 34492528 DOI: 10.1016/j.envpol.2021.118100] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 08/14/2021] [Accepted: 09/01/2021] [Indexed: 06/13/2023]
Abstract
The high toxicity and persistence of polychlorinated biphenyls (PCBs) in the environment demands the development of effective remediation for PCBs-contaminated soils. In this study, electrokinetic (EK) remediation integrated with iron-carbon material (Fe/C) was established and used to remediate PCB28 (1 mg kg-1) contaminated soil under a voltage gradient of 1 V cm-1. Effects of Fe/C dosage, soil type, and remediation time were investigated. The operational condition was optimized as 4 g kg-1 Fe/C, yellow soil, and 14 d-remediation, achieving PCB28 removal efficiency of 58.6 ± 8.8% and energy utilization efficiency of 146.5. Introduction of EK-Fe/C did not significantly affect soil properties except for slight soil moisture content increase and total Fe content loss. Soil electrical conductivity exhibited an increasing trend from anode to cathode attributed to EK-induced electromigration and electroosmosis. EK accelerated the corrosion and consumption of reactive Fe0/Fe3C in Fe/C by generating acid condition. Fe/C in turn effectively prevented EK-induced soil acidification and maintained soil neutral to weak alkaline condition. A synergistic effect between EK and Fe/C was revealed by the order of PCB28 removal efficiency-EK-Fe/C (58.6 ± 8.8%) > EK (37.7 ± 1.6%) > Fe/C (6.8 ± 5.0%). This could be primarily attributed to EK and Fe/C enhanced Fenton reaction, where EK promoted Fe/C dissolution and H2O2 generation. In addition to oxidation by Fenton reaction generated ·OH, EK-mediated electrochemical oxidation, Fe/C-induced reduction and migration of Fe/C adsorbed PCBs were all significant contributors to PCB28 removal in the EK-Fe/C system. These findings suggest that the combination of EK and Fe/C is a promising technology for remediation of organics-contaminated soil.
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Affiliation(s)
- Yan Song
- Department of Environmental Science, Zhejiang University, Hangzhou, 310058, China
| | - Cheng Lei
- Department of Environmental Science, Zhejiang University, Hangzhou, 310058, China
| | - Kun Yang
- Department of Environmental Science, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Zhejiang University, Hangzhou, 310058, China
| | - Daohui Lin
- Department of Environmental Science, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Zhejiang University, Hangzhou, 310058, China.
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50
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Natural Clay as a Low-Cost Adsorbent for Crystal Violet Dye Removal and Antimicrobial Activity. NANOMATERIALS 2021; 11:nano11112789. [PMID: 34835556 PMCID: PMC8620351 DOI: 10.3390/nano11112789] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/13/2021] [Accepted: 10/18/2021] [Indexed: 12/17/2022]
Abstract
This investigation aimed at evaluating the efficiency of micro and nanoclays as a low-cost material for the removal of crystal violet (CV) dye from an aqueous solution. The impacts of various factors (contact time, pH, adsorbent dosage, temperature, initial dye concentration) on the adsorption process have been taken into consideration. Six micro and nanoclay samples were obtained by treating clay materials collected from different locations in the Albaha region, Saudi Arabia. Out of the six tested micro and nanoclays materials, two (NCQ1 and NCQ3) were selected based on the highest adsorption efficiency for complete experimentation. The morphology and structure of the selected micro and nanoclay adsorbents were characterized by various techniques: SEM-EDX, FTIR, XRF, XRD, and ICP-MS. The XRF showed that the main oxides of both nanoclays were SiO2, Al2O3, Fe2O3, K2O, CaO, and MgO, and the rest were impurities. All the parameters affecting the adsorption of CV dye were optimized in a batch system, and the optimized working conditions were an equilibrium time of 120 min, a dose of 30 mg, a temperature of 25 °C, and an initial CV concentration of 400 mg/L. The equilibrium data were tested using nonlinear isotherm and kinetic models, which showed that the Freundlich isotherm and pseudo-second-order kinetics gave the best fit with the experimental data, indicating a physico-chemical interaction occurred between the CV dye and both selected micro and nanoclay surfaces. The maximum adsorption capacities of NCQ1 and NCQ3 adsorbents were 206.73 and 203.66 mg/g, respectively, at 25 °C. The thermodynamic factors revealed that the CV dye adsorption of both micro and nanoclays was spontaneous and showed an exothermic process. Therefore, the examined natural micro and nanoclays adsorbents are promising effective adsorbents for the elimination of CV dye from an aqueous environment.
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