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Li L, Niu X, Zhang D, Ye X, Zhang Z, Liu Q, Ding L, Chen K, Chen Y, Chen K, Shi Z, Lin Z. A systematic review on percarbonate-based advanced oxidation processes in wastewater remediation: From theoretical understandings to practical applications. WATER RESEARCH 2024; 259:121842. [PMID: 38820735 DOI: 10.1016/j.watres.2024.121842] [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: 03/27/2024] [Revised: 05/23/2024] [Accepted: 05/25/2024] [Indexed: 06/02/2024]
Abstract
Percarbonate encompasses sodium percarbonate (SPC) and composite in-situ generated peroxymonocarbonate (PMC). SPC emerges as a promising alternative to hydrogen peroxide (H2O2), hailed for its superior transportation safety, stability, cost-effectiveness, and eco-friendliness, thereby becoming a staple in advanced oxidation processes for mitigating water pollution. Yet, scholarly literature scarcely explores the deployment of percarbonate-AOPs in eradicating organic contaminants from aquatic systems. Consequently, this review endeavors to demystify the formation mechanisms and challenges associated with reactive oxygen species (ROS) in percarbonate-AOPs, alongside highlighting directions for future inquiry and development. The genesis of ROS encompasses the in situ chemical oxidation of activated SPC (including iron-based activation, discharge plasma, ozone activation, photon activation, and metal-free materials activation) and composite in situ chemical oxidation via PMC (namely, H2O2/NaHCO3/Na2CO3, peroxymonosulfate/NaHCO3/Na2CO3 systems). Moreover, the ROS generated by percarbonate-AOPs, such as •OH, O2•-, CO3•-, HO2•-, 1O2, and HCO4-, can work individually or synergistically to disintegrate target pollutants. Concurrently, this review systematically addresses conceivable obstacles posing percarbonate-AOPs in real-world application from the angle of environmental conditions (pH, temperature, coexisting substances), and potential ecological toxicity. Considering the outlined challenges and advantages, we posit future research directions to amplify the applicability and efficacy of percarbonate-AOPs in tangible settings. It is anticipated that the insights provided in this review will catalyze the progression of percarbonate-AOPs in water purification endeavors and bridge the existing knowledge void.
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Affiliation(s)
- Ling Li
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Xiaojun Niu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou Higher Education Mega Centre, South China University of Technology, Guangzhou 510006, PR China.
| | - Dongqing Zhang
- School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, PR China.
| | - Xinyao Ye
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Zhilin Zhang
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Qiang Liu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Lei Ding
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243032, China
| | - Kun Chen
- School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, PR China
| | - Yang Chen
- School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, PR China
| | - Kunyang Chen
- School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, PR China
| | - Zhaocai Shi
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Zhang Lin
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
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Wan J, Guo Y, Zhang Z, Deng R, Wang X, Cao S, Zhang X, Miao Y, Jiang J, Song Z, Long T, Sun C, Zhu X. Persulfate activation with biochar supported nanoscale zero- valent iron: Engineering application for effective degradation of NCB in soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 933:173053. [PMID: 38723973 DOI: 10.1016/j.scitotenv.2024.173053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 04/20/2024] [Accepted: 05/06/2024] [Indexed: 05/19/2024]
Abstract
Nitrochlorobenzene (NCB) is very common in pesticide and chemical industries, which has become a major problem in soil environment. However, the remediation of NCB contaminated soil is received finite concern. Using biochar as a substrate for nanoscale-zero valent iron (nZVI/p-BC) to activate peroxodisulfate (PDS), a novel heterogeneous oxidative system had been applied in the current study to remediate NCB contaminants in soil. The degradation efficiencies and kinetics of m-NCB, p-NCB, and o-NCB by various systems were contrasted in soil slurry. Key factors including the dosage of nZVI/p-BC, the molar ratio of nZVI/PDS, initial pH and temperature on degradation of NCB were further examined. The results confirmed that the nZVI/p-BC/PDS displayed the remarkable performance for removing NCB compared with other systems. Higher temperature with nZVI/PDS molar ratio of 2:1 under the acidic condition favored the reduction of NCB. The treatment for NCB with optimal conditions were evaluated for the engineering application. The mechanism of nZVI/p-BC/PDS indicated that electron transfer between p-BC and nZVI was responsible for activation of PDS, generating active species (SO4•-, •OH and 1O2) via both the free and non-free radical pathways. Experimental results revealed prominent availability of nZVI/p-BC/PDS system in remediation of actual contaminated field by NCB.
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Affiliation(s)
- Jinzhong Wan
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China
| | - Yang Guo
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China.
| | - Zehang Zhang
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China; College of Environment, Hohai University, Nanjing 210098, China
| | - Rufeng Deng
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China; College of Environment, Hohai University, Nanjing 210098, China
| | - Xiang Wang
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China
| | - Shaohua Cao
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China
| | - Xiaodong Zhang
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China
| | - Yifei Miao
- College of Environment, Hohai University, Nanjing 210098, China
| | - Jinlin Jiang
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China
| | - Zhen Song
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China
| | - Tao Long
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China
| | - Cheng Sun
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Xin Zhu
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China.
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3
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Wei S, Du G, Li C, Zhang L, Li J, Mao A, He C. Removal mechanism of Pb(ii) from soil by biochar-supported nanoscale zero-valent iron composite materials. RSC Adv 2024; 14:18148-18160. [PMID: 38854839 PMCID: PMC11155265 DOI: 10.1039/d4ra03357d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Accepted: 05/31/2024] [Indexed: 06/11/2024] Open
Abstract
As an adsorbent, biochar has a highly porous structure and strong adsorption capacity, and can effectively purify the environment. In response to the increasingly serious problem of heavy metal pollution in water, this study used nano zero valent iron and rice husk biochar to prepare a new type of magnetic sheet-like biochar loaded nano zero valent iron (BC-nZVI) composite material through rheological phase reaction, showing remarkable advantages such as low cost, easy preparation, and superior environmental remediation effect. The physical and chemical properties and structure of the material were extensively characterized using various methods such as HRTEM, XPS, FESEM, EDS, XRD, FTIR, and RAMAN. Concurrently, batch experiments were undertaken to assess the removal efficiency of Pb(ii) by BC-nZVI, with investigations into the influence of pH value, temperature, soil water ratio, and initial concentration of heavy metal ion solution on its removal efficiency. The results indicate that the removal of Pb(ii) by BC-nZVI reaches an equilibrium state after around 120 minutes. Under the conditions of pH 6, temperature 20 °C, soil water ratio 1 : 5, and BC-nZVI dosage of 1 g L-1, BC-nZVI can reduce the Pb(ii) content in wastewater with an initial concentration of 30 mg L-1 to trace levels, and the treatment time is about 120 minutes. The analysis of adsorption kinetics and isotherms indicates that the adsorption process of Pb(ii) by BC-nZVI adheres to the quasi-second-order kinetic model and Langmuir model, suggesting a chemical adsorption process. Thermodynamic findings reveal that the adsorption of Pb(ii) by BC-nZVI is spontaneous. Furthermore, BC-nZVI primarily accumulates Pb(ii) through adsorption co-precipitation. BC-nZVI serves as an eco-friendly, cost-effective, and highly efficient adsorbent, showing promising capabilities in mitigating Pb(ii) heavy metal pollution. Its recoverability and reusability facilitated by an external magnetic field make it advantageous for remediating and treating lead-contaminated sites.
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Affiliation(s)
- Shuxian Wei
- School of Metallurgical Engineering, Anhui University of Technology Ma'anshan Anhui 243002 China +8618162347179
| | - Gang Du
- School of Metallurgical Engineering, Anhui University of Technology Ma'anshan Anhui 243002 China +8618162347179
| | - Canhua Li
- School of Metallurgical Engineering, Anhui University of Technology Ma'anshan Anhui 243002 China +8618162347179
- Anhui Province Key Laboratory of Metallurgical Engineering & Resources Recycling Ma'anshan Anhui 243002 China
| | - Lanyue Zhang
- School of Metallurgical Engineering, Anhui University of Technology Ma'anshan Anhui 243002 China +8618162347179
| | - Jiamao Li
- School of Materials Science and Engineering, Anhui University of Technology Ma'anshan Anhui 243002 China
| | - Aiqin Mao
- School of Materials Science and Engineering, Anhui University of Technology Ma'anshan Anhui 243002 China
| | - Chuan He
- Jiuquan Vocational and Technical College Jiuquan GanSu 735000 China
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Zhou Y, Yao B, Yuan Y, Hu W, Liu J, Zou H, Zhou Y. Enhancement of Fenton processes at initial circumneutral pH for the degradation of norfloxacin with Fe@FeS core-shell nanowires. ENVIRONMENTAL TECHNOLOGY 2023; 44:2451-2461. [PMID: 35084294 DOI: 10.1080/09593330.2022.2033329] [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: 11/28/2021] [Accepted: 01/15/2022] [Indexed: 06/08/2023]
Abstract
The disadvantages of narrow working pH range (2.5-4.0), accumulation of iron sludge and incomplete degradation have hindered the practical application of the traditional homogeneous Fenton technique. In this research, Fe@FeS core-shell nanowires were synthesised and the innovative Fe@FeS/Fe2+/H2O2 system was adopted for norfloxacin (NOR) degradation at an initial circumneutral pH. More than 95% NOR has been removed in the Fe@FeS/Fe2+/H2O2 system within 30 min at pH 7. After investigating the concentration change of total iron, Fe2+ and H2O2 during the degradation process, NOR degradation in the Fe@FeS/Fe2+/H2O2 system might be attributed to the combined effect of homogeneous Fenton reaction and heterogeneous Fenton process. Besides that, the added Fe@FeS has accelerated Fe3+/Fe2+ redox cycle with extremely high degree. The generated reactive ●OH has been identified by electron paramagnetic resonance spectrometer results, possible degradation intermediates have also been proposed according to Gas chromatography-mass spectrometry analysis results. Moreover, Fe@FeS core-shell nanowires showed excellent reusability, it is a promising heterogeneous Fenton catalyst that is applicable for practical application.
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Affiliation(s)
- Yuzhou Zhou
- College of Resources and Environment, Hunan Agricultural University, Changsha, People's Republic of China
| | - Bin Yao
- College of Resources and Environment, Hunan Agricultural University, Changsha, People's Republic of China
| | - Yawen Yuan
- College of Resources and Environment, Hunan Agricultural University, Changsha, People's Republic of China
| | - Wenyong Hu
- College of Biological Resources and Environmental Science, Jishou University, Jishou, People's Republic of China
| | - Jingyi Liu
- College of Biological Resources and Environmental Science, Jishou University, Jishou, People's Republic of China
| | - Huanwei Zou
- College of Resources and Environment, Hunan Agricultural University, Changsha, People's Republic of China
| | - Yaoyu Zhou
- College of Resources and Environment, Hunan Agricultural University, Changsha, People's Republic of China
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Imasaka Y, Katayama Y, Harada H, Simion C, Simion AM, Mitoma Y. Dry dechlorination of polychlorinated biphenyls in contaminated soil by using nano-sized composite of metallic Ca/CaO and its mechanism. CHEMOSPHERE 2023; 311:137197. [PMID: 36356819 DOI: 10.1016/j.chemosphere.2022.137197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/05/2022] [Accepted: 11/06/2022] [Indexed: 06/16/2023]
Abstract
Soil contamination by PCBs is still known as a serious problem across the world, and the development of new technologies or the improvement of existing ones (e.g. higher efficiency, shorter processing time, lower input energy) are more and more important. Moreover, understanding the chemistry of the entire process, from a mechanistic point of view, can accelerate the process of improvement. In these circumstances, we attempted a clarification of the highly efficient degradation of PCBs by nano-sized particle of metallic Ca in CaO ("nCa") at 250 °C in dry solid state conditions. The reaction involved the hydrodechlorination, simple reduction, reductive coupling and hydroxylation processes. The detoxification efficiency reached over 99%. A tentative pathway and mechanism is proposed for explaining the final reactions products. Finally, the process was applied to real PCBs-contaminated soil, containing various amounts of PCBs, with a total success in completely eliminating the toxic polychlorinated compounds.
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Affiliation(s)
- Yusaku Imasaka
- Program in Biological System Sciences, Graduate School of Comprehensive Scientific Research, Prefectural University of Hiroshima, 5562 Nanatsuka-Cho, Shobara City, Hiroshima, 727-0023, Japan
| | - Yumi Katayama
- Department of Life and Environmental Science, Faculty of Engineering, Hachinohe Institute of Technology, 88-1 Obiraki, Myo, Hachinohe City, Aomori Prefecture, Japan
| | - Hiroyuki Harada
- Program in Biological System Sciences, Graduate School of Comprehensive Scientific Research, Prefectural University of Hiroshima, 5562 Nanatsuka-Cho, Shobara City, Hiroshima, 727-0023, Japan
| | - Cristian Simion
- Department of Organic Chemistry, Faculty of Applied Chemistry and Material Science, Politehnica University Bucharest, 060042, Romania
| | - Alina M Simion
- Department of Organic Chemistry, Faculty of Applied Chemistry and Material Science, Politehnica University Bucharest, 060042, Romania
| | - Yoshiharu Mitoma
- Program in Biological System Sciences, Graduate School of Comprehensive Scientific Research, Prefectural University of Hiroshima, 5562 Nanatsuka-Cho, Shobara City, Hiroshima, 727-0023, Japan.
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6
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Xiao S, Jin Z, Dong H, Xiao J, Li Y, Li L, Li R, Chen J, Tian R, Xie Q. A comparative study on the physicochemical properties, reactivity and long-term performance of sulfidized nanoscale zerovalent iron synthesized with different kinds of sulfur precursors and procedures in simulated groundwater. WATER RESEARCH 2022; 212:118097. [PMID: 35081495 DOI: 10.1016/j.watres.2022.118097] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/14/2022] [Accepted: 01/15/2022] [Indexed: 06/14/2023]
Abstract
There are plentiful ways to synthesize sulfidized nanoscale zerovalent iron (S-nZVI), and this study investigated the influence of sulfur reagents (Na2S, Na2S2O3, Na2S2O4) and sulfidation sequence (co-sulfidation and post-sulfidation method) on the physicochemical properties, reactivity, and long-term performance of S-nZVI in simulated groundwater. The results suggested that the co-sulfidized nZVI (S-nZVIco) has higher reactivity (∼2-fold) than S-nZVIpost due to the stronger electron transfer capacity, deriving from the higher content of Fe0 and reductive sulfur species. However, during aging, the reactivity of S-nZVIco would be lost more rapidly than S-nZVIpost, due to the faster corrosion of Fe0 and more oxidation of reductive sulfur species. S-nZVIpost has the superior long-term performance with the degradation rate of trichloroethylene (TCE) remained at 30%∼60% even after 90 d of aging. Sulfur precursors can control the selectivity of S-nZVI by affecting the sulfur speciation on the particle surface. The proportion of reductive sulfur species on S-nZVIpost synthesized by Na2S was higher than S-nZVIpost synthesized by Na2S2O3 or Na2S2O4, resulting in a higher selectivity of the former S-nZVIpost than the latter S-nZVIpost. In addition, sulfidation procedures and sulfur precursors did not affect the degradation pathway of TCE. Nevertheless, the degradation product distribution can be affected by the different physicochemical transformation of various types of S-nZVI with the aging time. These results indicated that sulfur reagents and sulfidation procedures have crucial effects on the reactivity and long-term performance of S-nZVI, which can be designed for the specific application scenarios.
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Affiliation(s)
- Shuangjie Xiao
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Zilan Jin
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Haoran Dong
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China.
| | - Junyang Xiao
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Yangju Li
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Long Li
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Rui Li
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Jie Chen
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Ran Tian
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Qianqian Xie
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
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Zeng S, Zhong D, Xu Y, Zhong N. Biochar-loaded nZVI/Ni bimetallic particles for hexavalent chromium removal from aqueous solution. J DISPER SCI TECHNOL 2022. [DOI: 10.1080/01932691.2022.2052310] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Sijing Zeng
- School of Chemical Engineering, Chongqing University of Technology, Chongqing, China
| | - Dengjie Zhong
- School of Chemical Engineering, Chongqing University of Technology, Chongqing, China
| | - Yunlan Xu
- School of Chemical Engineering, Chongqing University of Technology, Chongqing, China
| | - Nianbing Zhong
- School of Electrical and Electronic Engineering, Chongqing University of Technology, Chongqing, China
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Liu X, He S, Yang Y, Yao B, Tang Y, Luo L, Zhi D, Wan Z, Wang L, Zhou Y. A review on percarbonate-based advanced oxidation processes for remediation of organic compounds in water. ENVIRONMENTAL RESEARCH 2021; 200:111371. [PMID: 34081973 DOI: 10.1016/j.envres.2021.111371] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 05/10/2021] [Accepted: 05/19/2021] [Indexed: 06/12/2023]
Abstract
Sodium percarbonate (SPC) is considered a potential alternative to liquid hydrogen peroxide (H2O2) in organic compounds contaminated water/soil remediation due to its regularly, transportable, economical, and eco-friendly features. The solid state of SPC makes it more suitable to remediate actual soil and water with a milder H2O2 release rate. Apart from its good oxidative capacity, alkaline SPC can simultaneously remediate acidized solution and soil to the neutral condition. Conventionally, percarbonate-based advanced oxidation process (P-AOPs) system proceed through the catalysis under ultraviolet ray, transition metal ions (i.e., Fe2+, Fe3+, and V4+), and nanoscale zero-valent metals (iron, zinc, copper, and nickel). The hydroxyl radical (•OH), superoxide radical (•O2-), and carbonate radical anion (•CO3-) generated from sodium percarbonate could attack the organic pollutant structure. In this review, we present the advances of P-AOPs in heterogeneous and homogeneous catalytic processes through a wide range of activation methods. This review aims to give an overview of the catalysis and application of P-AOPs for emerging contaminants degradation and act as a guideline of the field advances. Various activation methods of percarbonate are summarized, and the influence factors in the solution matrix such as pH, anions, and cations are thoroughly discussed. Moreover, this review helps to clarify the advantages and shortcomings of P-AOPs in current scientific progress and guide the future practical direction of P-AOPs in sustainable carbon catalysis and green chemistry.
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Affiliation(s)
- Xin Liu
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, Hunan Agricultural University, Changsha, 410028, China
| | - Sen He
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, Hunan Agricultural University, Changsha, 410028, China
| | - Yuan Yang
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, Hunan Agricultural University, Changsha, 410028, China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering, Central South University, China.
| | - Bin Yao
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, Hunan Agricultural University, Changsha, 410028, China
| | - Yifei Tang
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, Hunan Agricultural University, Changsha, 410028, China
| | - Lin Luo
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, Hunan Agricultural University, Changsha, 410028, China
| | - Dan Zhi
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, Hunan Agricultural University, Changsha, 410028, China
| | - Zhonghao Wan
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, China
| | - Lei Wang
- Institute of Construction Materials, Technische Universität Dresden, 01062, Dresden, Germany
| | - Yaoyu Zhou
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, Hunan Agricultural University, Changsha, 410028, China.
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Wang W, Zhang Q, Zhang M, Lv X, Li Z, Mohammadniaei M, Zhou N, Sun Y. A novel biodegradable injectable chitosan hydrogel for overcoming postoperative trauma and combating multiple tumors. Carbohydr Polym 2021; 265:118065. [PMID: 33966829 DOI: 10.1016/j.carbpol.2021.118065] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 04/08/2021] [Accepted: 04/08/2021] [Indexed: 11/30/2022]
Abstract
Wound bacterial infections and tumor recurrence are the main reasons for the poor prognosis after primary tumor resection. Here, we fabricated a novel therapeutic nanocomposite using chitosan (CS) hydrogel combined with black phosphate nanosheets (BPNSs) and in situ grown copper nanoparticles (CuNPs). The obtained hydrogel (CS@BPNSs@CuNPs), possessing a remarkable temperature-sensitive spongy-like state, offered 24.98 % blood clotting index. The released BPNSs@CuNPs could produce reactive oxygen species (ROS) to kill infected invasive bacteria (98.1 %) and inhibit local residual tumor cell regeneration (11.3 %). Moreover, by coupling the photothermal properties of BPNSs, the BPNSs@CuNPs showed 19.6 % penetration rate to cross the blood tumor barrier (BTB) for treating brain tumors. The hydrogel platform was further combined with aPD-L1-based immunotherapy to employ its synergetic therapeutic effect in the prevention of tumors. The in vivo studies showed that biodegradable hydrogel could hold a great potential as a novel strategy for improving postoperative therapy and multi-tumor treatments.
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Affiliation(s)
- Wentao Wang
- Department of Health Technology, Technical University of Denmark, Kongens Lyngby, DK-2800, Denmark
| | - Qicheng Zhang
- Jiangsu Collaborative Innovation Center for Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Ming Zhang
- Department of Health Technology, Technical University of Denmark, Kongens Lyngby, DK-2800, Denmark.
| | - Xintong Lv
- Jiangsu Collaborative Innovation Center for Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Zihan Li
- Jiangsu Collaborative Innovation Center for Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Mohsen Mohammadniaei
- Department of Health Technology, Technical University of Denmark, Kongens Lyngby, DK-2800, Denmark
| | - Ninglin Zhou
- Jiangsu Collaborative Innovation Center for Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China.
| | - Yi Sun
- Department of Health Technology, Technical University of Denmark, Kongens Lyngby, DK-2800, Denmark.
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Li J, Li Q, Steinberg CEW, Zhao Q, Pan B, Pignatello JJ, Xing B. Reaction of Substituted Phenols with Lignin Char: Dual Oxidative and Reductive Pathways Depending on Substituents and Conditions. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:15811-15820. [PMID: 33241687 DOI: 10.1021/acs.est.0c04991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Biomass chars are known to be intrinsically redox-reactive toward some organic compounds, but the mechanisms are still unclear. To address this, a char made anoxically at 500 °C from dealkaline lignin was reacted either in the fresh state or after 180-day aging in air with p-nitrophenol (NO2-P), p-hydroxybenzaldehyde (CHO-P), phenol (H-P), or p-methoxyphenol (MeO-P). The reactions were carried out under oxic or anoxic conditions. Degradation occurred in all cases. Both oxidation and reduction products were identified, with yields dependent on the presence or absence of air during reaction or storage. They included oligomers, amines, and ring-hydroxylated compounds, among others. Exposure to air suppressed sorption, annihilated reducing sites, and provided a source of reactive oxygen species that assisted degradation. Sorption suppression was due to the incorporation of hydrophilic groups by chemisorption of oxygen, and possibly blockage of sites by products. Fresh char has comparable electron-donating and accepting capacity, whereas there is a preponderance of electron-accepting over donating capacity in aged char. Under anoxic conditions, both oxidation and reduction occurred. Under oxic conditions or after aging in air, oxidation predominated, and linear free energy relationships were found between the rate constant and the Hammett or Brown substituent electronic parameter or the standard electrode potential of the phenol. The results demonstrate that chars possess heterogeneous redox activities depending on reaction pairs, reaction conditions, and aging.
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Affiliation(s)
- Jing Li
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500 Yunnan, China
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Qingqing Li
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Christian E W Steinberg
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500 Yunnan, China
- Faculty of Life Sciences, Laboratory of Freshwater & Stress Ecology, Humboldt-Universität zu Berlin, Arboretum, Späthstr. 80/81, 12437 Berlin, Germany
| | - Qing Zhao
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Bo Pan
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500 Yunnan, China
| | - Joseph J Pignatello
- Department of Environmental Sciences, The Connecticut Agricultural Experiment Station, New Haven, Connecticut 06504, United States
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
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11
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Du J, Kim SH, Hassan MA, Irshad S, Bao J. Application of biochar in advanced oxidation processes: supportive, adsorptive, and catalytic role. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:37286-37312. [PMID: 31933079 DOI: 10.1007/s11356-020-07612-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 01/01/2020] [Indexed: 05/20/2023]
Abstract
The advanced oxidation processes (AOPs), especially sulphate radical (SO4•-)-based AOPs (SR-AOPs), have been considered more effective, selective, and prominent technologies for the removal of highly toxic emerging contaminants (ECs) due to wide operational pH range and relatively higher oxidation potential (2.5-3.1 V). Recently, biochar (BC)-based composite materials have been introduced in AOPs due to the dual benefits of adsorption and catalytic degradation, but the scientific review of BC-based catalysts for the generation of reactive oxygen species (ROSs) through radical- and non-radical-oriented routes for EC removal was rarely reported. The chemical treatments, such as acid/base treatment, chemical oxidation, surfactant incorporation, and coating and impregnation of minerals, were applied to make BC suitable as supporting materials (SMs) for the loading of Fenton catalysts to boost up peroxymonosulphate/persulphate/H2O2 activation to get ROSs including •OH, SO4•-, 1O2, and O2•- for targeted pollutant degradation. In this review, all the possible merits of BC-based catalysts including supportive, adsorptive, and catalytic role are summarised along with the possible route for the development prospects of BC properties. The limitations of SR-AOPs especially on production of non-desired oxyanions, as well as disinfection intermediates and their potential solutions, have been identified. Lastly, the knowledge gap and future-oriented research needs are highlighted.
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Affiliation(s)
- Jiangkun Du
- School of Environmental Studies, China University of Geosciences, 430074, Wuhan, People's Republic of China.
| | - Sang Hoon Kim
- Materials Architecturing Research Center, Korea Institute of Science and Technology, Seoul, 136-791, Korea
| | - Muhammad Azher Hassan
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Sana Irshad
- School of Environmental Studies, China University of Geosciences, 430074, Wuhan, People's Republic of China
| | - Jianguo Bao
- School of Environmental Studies, China University of Geosciences, 430074, Wuhan, People's Republic of China.
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12
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Zhang C, Lu J, Wu J. One-step green preparation of magnetic seaweed biochar/sulfidated Fe 0 composite with strengthen adsorptive removal of tetrabromobisphenol A through in situ reduction. BIORESOURCE TECHNOLOGY 2020; 307:123170. [PMID: 32203866 DOI: 10.1016/j.biortech.2020.123170] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 03/02/2020] [Accepted: 03/06/2020] [Indexed: 06/10/2023]
Abstract
Rare information is available on the facile preparation of biochar/sulfidated Fe0 composite. A facile one-step green method was established for the synthesis of magnetic seaweed (Ulva prolifera) biochar/sulfidated Fe0 composite (S-Fe0/BC) to use excessive seaweed biomass. Removal efficiency of tetrabromobisphenol A (TBBPA) reached up to 88% in iron-sulfur treatment. Two major products were identified as bisphenol A and monobromobisphenol A, confirming the in-situ reductive debromination of TBBPA. Batch experiments showed that the removal of TBBPA was facilitated with S/Fe molar ratio of 0.2 and acidic conditions (pH = 3-7). The S-Fe0/BC composite had good stability and reusability based on the cycle experiments. The removal process of TBBPA by S-Fe0/BC composite might include chemical adsorption by S-Fe0/BC composite, reduction debromination by S-Fe0 and enhanced electron transfer. The environmentally-friendly S-Fe0/BC composite synthesized by one-step facile procedure showed novel potential applications in terms of pollution control of halogenated xenobiotic compounds such as TBBPA.
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Affiliation(s)
- Cui Zhang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Jian Lu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, Shandong 266071, PR China.
| | - Jun Wu
- School of Resources and Environmental Engineering, Ludong University, Yantai, Shandong 264025, PR China
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13
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Manna S, Singh N, Purakayastha T, Berns AE. Effect of deashing on physico-chemical properties of wheat and rice straw biochars and potential sorption of pyrazosulfuron-ethyl. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2017.10.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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14
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Xiang Y, Xu Z, Zhou Y, Wei Y, Long X, He Y, Zhi D, Yang J, Luo L. A sustainable ferromanganese biochar adsorbent for effective levofloxacin removal from aqueous medium. CHEMOSPHERE 2019; 237:124464. [PMID: 31394454 DOI: 10.1016/j.chemosphere.2019.124464] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/09/2019] [Accepted: 07/23/2019] [Indexed: 05/06/2023]
Abstract
This present study reported the synthesis and characterization of a low-cost, environment friendly and high efficient biochar, ferromanganese modified biochar (Fe/Mn-BC) for the removal of levofloxacin (LEV) from aqueous medium. Fe/Mn-BC was synthesized through the facile co-precipitation of Fe, Mn with vinasse wastes and then pyrolysis under controlled conditions. The characterization of Fe/MnBC was analyzed by scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction patterns (XPS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and Raman. Some influencing factors (e.g., pH, Fe/Mn-BC dosage, initial LEV concentration, ionic strength, contact time and temperature) were comprehensively investigated. The results manifested that the adsorption process of LEV onto Fe/Mn-BC was high pH dependence and the maximum adsorption capacity was achieved at pH 5. Moreover, the adsorption capacity of LEV was increased with increasing ionic strength. To gain a clearer perspective on the adsorption behavior of LEV onto Fe/Mn-BC, the adsorption kinetics and isotherms were also performed, revealing pseudo-second-order and Freundlich model had a better fitting effect. Reusability experiments indicated that Fe/Mn-BC could maintain a certain adsorption capacity for LEV after 5 recycles. Overall, this work showed that Fe/Mn-BC was an effective and promising adsorbent for eliminating LEV from aqueous medium.
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Affiliation(s)
- Yujia Xiang
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Zhangyi Xu
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Yaoyu Zhou
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
| | - Yuyi Wei
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Xingyu Long
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Yangzhou He
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Dan Zhi
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, 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 Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
| | - Lin Luo
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
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15
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Liu J, Hu W, Sun M, Xiong O, Yu H, Feng H, Wu X, Tang L, Zhou Y. Enhancement of Fenton processes at initial circumneutral pH for the degradation of norfloxacin with Fe@Fe 2O 3 core-shell nanomaterials. ENVIRONMENTAL TECHNOLOGY 2019; 40:3632-3640. [PMID: 29862933 DOI: 10.1080/09593330.2018.1483972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 05/25/2018] [Indexed: 06/08/2023]
Abstract
The degradation of norfloxacin by Fenton reagent with core-shell Fe@Fe2O3 nanomaterials was studied under neutral conditions in a closed batch system. Norfloxacin was significantly degraded (90%) in the Fenton system with Fe@Fe2O3 in 30 min at the initial pH 7.0, but slightly degraded in Fenton system without Fe@Fe2O3 under the same experimental conditions. The intermediate products were investigated by gas chromatography-mass spectrometry, and the possible Fenton oxidation pathway of norfloxacin in the presence of Fe@Fe2O3 nanowires was proposed. Electron spin resonance spectroscopy was used to identify and characterize the free radicals generated, and the mechanism for norfloxacin degradation was also revealed. Finally, the reusability and the stability of Fe@Fe2O3 nanomaterials were studied using x-ray diffraction and scanning electron microscope, which indicated that Fe@Fe2O3 is a stable catalyst and can be used repetitively in environmental pollution control.
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Affiliation(s)
- Jingyi Liu
- College of Biological Resources and Environmental Science, Jishou University , Hunan , People's Republic of China
- College of Resources and Environment, Hunan Agricultural University , Changsha , People's Republic of China
| | - Wenyong Hu
- College of Biological Resources and Environmental Science, Jishou University , Hunan , People's Republic of China
- College of Resources and Environment, Hunan Agricultural University , Changsha , People's Republic of China
| | - Maogui Sun
- College of Biological Resources and Environmental Science, Jishou University , Hunan , People's Republic of China
| | - Ouyang Xiong
- College of Biological Resources and Environmental Science, Jishou University , Hunan , People's Republic of China
| | - Haibin Yu
- College of Biological Resources and Environmental Science, Jishou University , Hunan , People's Republic of China
| | - Haopeng Feng
- College of Environmental Science and Engineering, Hunan University , Changsha , People's Republic of China
| | - Xuan Wu
- College of Biological Resources and Environmental Science, Jishou University , Hunan , People's Republic of China
| | - Lin Tang
- College of Environmental Science and Engineering, Hunan University , Changsha , People's Republic of China
| | - Yaoyu Zhou
- College of Resources and Environment, Hunan Agricultural University , Changsha , People's Republic of China
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16
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Shi Y, Liu X, Zhang Q. Effects of combined biochar and organic fertilizer on nitrous oxide fluxes and the related nitrifier and denitrifier communities in a saline-alkali soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 686:199-211. [PMID: 31176819 DOI: 10.1016/j.scitotenv.2019.05.394] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 04/19/2019] [Accepted: 05/25/2019] [Indexed: 06/09/2023]
Abstract
This study intended to evaluate the combined effects of both biochar and organic fertilizer on nitrous oxide (N2O) fluxes and composition of nitrifier and denitrifier of saline-alkali soil. Therefore, four different treatments such as CK (only chemical fertilizer), B (only biochar), M (only organic fertilizer), BM (B:M = 1:1) were used in this experiment. The results showed that N2O emissions were decreased in B and BM treatments compare to the control. In contrast, N2O emissions were highest before day 12 but lowest after day 19 in M treatment compare to the control. Application of biochar, organic fertilizer and biochar plus organic fertilizer decreased the nirS and nirK genes copies and enhanced the nosZ gene copies which resulting in the lower N2O fluxes. The ammonia-oxidizing bacteria (AOB) amoA and nirK genes copies were significantly increased by organic fertilizer before day 12, leading to high N2O emissions. The genera Nitrosospira (AOB) and Nitrososphaera (ammonia-oxidizing archaea, AOA) assumed absolute superiority. Additionally, Nitrosospira (AOB) was also appeared in nirK-type denitrifiers, illustrating denitrification was carried out by nitrifiers. The genera Azospirillum (nirS), Burkholderia (nosZ) and Polymorphum (nosZ) were dominant in CK. There was only one dominant genus, Mesorhizobium (nosZ) in the B treatment. The genera Mesorhizobium (nirK), Azoarcus (nirS), Kocuria (nirS) and Pseudomonas (nosZ) occupied the main status in the M treatment. The relative abundance of Rhodanobacter (nirS) and Azospirillum (nosZ) were higher in the BM treatment compared with other treatments. Soil water content (SWC), pH, NH4+-N and NO3--N were the main factors affecting AOB and denitrifiers, which influencing N2O emissions. Overall, combined application of biochar and organic fertilizer can reduce the N2O emission where AOB and nirK-type denitrifier were the main contributors to the N2O emission.
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Affiliation(s)
- Yulong Shi
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xingren Liu
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Qingwen Zhang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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17
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Vogel M, Georgi A, Kopinke FD, Mackenzie K. Sulfidation of ZVI/AC composite leads to highly corrosion-resistant nanoremediation particles with extended life-time. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 665:235-245. [PMID: 30772554 DOI: 10.1016/j.scitotenv.2019.02.136] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/18/2019] [Accepted: 02/08/2019] [Indexed: 06/09/2023]
Abstract
Nanoscale zero-valent iron (nZVI) is a powerful reductant for many water pollutants. The lifetime of nZVI in aqueous environments is one of its limitations. Sulfidation of the nZVI surface by reduced sulfur species is known to significantly modify the particle properties. In the present study we examined various post-synthesis sulfidation methods applied on Carbo-Iron, a composite material where iron nanostructures are embedded in colloidal activated carbon (AC) particles. In such cases, where ZVI is surrounded by carbon, sulfidation largely inhibits the anaerobic corrosion of ZVI in water whereas its dechlorination activity was slightly increased. Even at a very low molar S/Fe ratio of 0.004 a strong decrease of the corrosion rate by a factor of 65 was achieved, while concurrently dechlorination of tetrachloroethene (PCE) was accelerated by a factor of three compared to the untreated particles. As a consequence, over 98% of the reduction equivalents of the sulfidated ZVI were utilized for the reduction of the target contaminant (33 mg L-1 PCE) under simulated groundwater conditions. In a long-term experiment over 160 days the extended life-time and the preservation of the reduction capacity of the embedded ZVI were confirmed. Reasons for the modified reaction behavior of Carbo-Iron after sulfidation compared to previously studied nZVI are discussed. We hypothesize that the structure of the carbon-embedded iron is decisive for the observed reaction behavior. In addition to reaction rates, the product pattern is vastly different compared to that of sulfidated nZVI. The triple combination of ZVI, AC and sulfur makes the composite particle very suitable for practical in-situ applications.
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Affiliation(s)
- Maria Vogel
- Helmholtz Centre for Environmental Research - UFZ, Department of Environmental Engineering, D-04318 Leipzig, Germany
| | - Anett Georgi
- Helmholtz Centre for Environmental Research - UFZ, Department of Environmental Engineering, D-04318 Leipzig, Germany
| | - Frank-Dieter Kopinke
- Helmholtz Centre for Environmental Research - UFZ, Department of Environmental Engineering, D-04318 Leipzig, Germany
| | - Katrin Mackenzie
- Helmholtz Centre for Environmental Research - UFZ, Department of Environmental Engineering, D-04318 Leipzig, Germany.
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18
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Vogel M, Kopinke FD, Mackenzie K. Acceleration of microiron-based dechlorination in water by contact with fibrous activated carbon. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 660:1274-1282. [PMID: 30743922 DOI: 10.1016/j.scitotenv.2019.01.070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/20/2018] [Accepted: 01/07/2019] [Indexed: 06/09/2023]
Abstract
Zero-valent iron (ZVI) is widely applied for reduction of chlorohydrocarbons in water. Since the dechlorination occurs at the iron surface, marked differences in rate constants are commonly found for nanoscale and microscale ZVI. It has already been shown for trichloroethene (TCE) adsorbed to activated carbon (AC) that the dechlorination reaction is shifted to the carbon surface simply by contacting the AC with highly reactive nanoscale ZVI particles. Transfer of reactive species to the adsorbed pollutant was discussed. The present study shows that even low price and very low reactive microscale ZVI can also be utilized for an effective dechlorination process. Compared to the reaction rate at the iron surface itself, an enormous acceleration of the dechlorination rate for chlorinated ethenes was observed, reaching activity levels such as known for nanoscale ZVI. When fibrous AC is brought into direct contact with microscale ZVI the iron-surface-normalised dechlorination rate constants increased by up to four orders of magnitude. This implies that the dechlorination reaction is fully transferred to the AC surface. At the same time, the anaerobic corrosion of the same material was not substantially affected. Thus, the utilization of iron's reduction equivalents towards dechlorination (dechlorination efficiency) can be considerably enhanced. A screening with various AC types showed that the extent of rate acceleration depends strongly on the surface chemistry of the AC. By means of temperature-programmed desorption, it could be shown that concentration and type of oxygen surface groups determine the redox-mediation properties. Quinone/hydroquinone groups were identified as being the main drivers for electron-transfer processes, but to some extent other redox-active groups such as chromene and pyrone can also act as redox mediators. AC overall plays the role of a catalyst rather than a reactant. The present study derives recommendations for practical application of the findings in water-treatment approaches.
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Affiliation(s)
- Maria Vogel
- Helmholtz Centre for Environmental Research - UFZ, Department of Environmental Engineering, D-04318 Leipzig, Germany
| | - Frank-Dieter Kopinke
- Helmholtz Centre for Environmental Research - UFZ, Department of Environmental Engineering, D-04318 Leipzig, Germany
| | - Katrin Mackenzie
- Helmholtz Centre for Environmental Research - UFZ, Department of Environmental Engineering, D-04318 Leipzig, Germany.
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19
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Xu L, Yang Y, Li W, Tao Y, Sui Z, Song S, Yang J. Three-dimensional macroporous graphene-wrapped zero-valent copper nanoparticles as efficient micro-electrolysis-promoted Fenton-like catalysts for metronidazole removal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 658:219-233. [PMID: 30577018 DOI: 10.1016/j.scitotenv.2018.12.040] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 11/15/2018] [Accepted: 12/04/2018] [Indexed: 06/09/2023]
Abstract
Three-dimensional macroporous graphene-wrapped zero-valent copper nanoparticles (3D-GN@Cu0) were synthesized using a self-assembly process of liquid-phase reduction and characterized by field emission scanning electron microscopy, nitrogen adsorption/desorption isotherms, X-ray diffraction, Raman spectrum analysis, and X-ray photoelectron spectroscopy. The catalytic activity of 3D-GN@Cu0 was evaluated in view of the effects of various systems, the pH value, catalyst dosage, initial metronidazole concentration and temperature, and it showed a high efficiency for removing metronidazole with saturated dissolved oxygen (without adding extra H2O2) in a wide range of pH value from 3.2 to 9.8. Combined with the results of dissolved oxygen activation, determination of reactive oxidizing species, and X-ray photoelectron spectroscopy (XPS) analysis, the surface-bounded ·OHads formed by the reaction of the in situ generation H2O2 with 3D-GN@Cu0 was mainly responsible for the removal of metronidazole. The charge distribution and electrostatic potential (ESP) of 3D-GN@Cu0 further illustrated the distribution and transfer of electrons on the catalyst surface, which predicted a micro-electrolysis-promoted Fenton-like reaction mechanism.
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Affiliation(s)
- Lejin Xu
- Department of Nuclear Engineering and Technology, School of Energy and Power Engineering, Huazhong University of Science & Technology, Wuhan 430074, PR China
| | - Yujia Yang
- Department of Nuclear Engineering and Technology, School of Energy and Power Engineering, Huazhong University of Science & Technology, Wuhan 430074, PR China
| | - Wuyang Li
- Department of Nuclear Engineering and Technology, School of Energy and Power Engineering, Huazhong University of Science & Technology, Wuhan 430074, PR China
| | - Yujie Tao
- Department of Nuclear Engineering and Technology, School of Energy and Power Engineering, Huazhong University of Science & Technology, Wuhan 430074, PR China
| | - Zengguang Sui
- Department of Nuclear Engineering and Technology, School of Energy and Power Engineering, Huazhong University of Science & Technology, Wuhan 430074, PR China
| | - Shuang Song
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Jun Yang
- Department of Nuclear Engineering and Technology, School of Energy and Power Engineering, Huazhong University of Science & Technology, Wuhan 430074, PR China.
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20
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Fe0/H2O Filtration Systems for Decentralized Safe Drinking Water: Where to from Here? WATER 2019. [DOI: 10.3390/w11030429] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Inadequate access to safe drinking water is one of the most pervasive problems currently afflicting the developing world. Scientists and engineers are called to present affordable but efficient solutions, particularly applicable to small communities. Filtration systems based on metallic iron (Fe0) are discussed in the literature as one such viable solution, whether as a stand-alone system or as a complement to slow sand filters (SSFs). Fe0 filters can also be improved by incorporating biochar to form Fe0-biochar filtration systems with potentially higher contaminant removal efficiencies than those based on Fe0 or biochar alone. These three low-cost and chemical-free systems (Fe0, biochar, SSFs) have the potential to provide universal access to safe drinking water. However, a well-structured systematic research is needed to design robust and efficient water treatment systems based on these affordable filter materials. This communication highlights the technology being developed to use Fe0-based systems for decentralized safe drinking water provision. Future research directions for the design of the next generation Fe0-based systems are highlighted. It is shown that Fe0 enhances the efficiency of SSFs, while biochar has the potential to alleviate the loss of porosity and uncertainties arising from the non-linear kinetics of iron corrosion. Fe0-based systems are an affordable and applicable technology for small communities in low-income countries, which could contribute to attaining self-reliance in clean water supply and universal public health.
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Herrero J, Puigserver D, Nijenhuis I, Kuntze K, Carmona JM. Combined use of ISCR and biostimulation techniques in incomplete processes of reductive dehalogenation of chlorinated solvents. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 648:819-829. [PMID: 30138882 DOI: 10.1016/j.scitotenv.2018.08.184] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 08/16/2018] [Accepted: 08/16/2018] [Indexed: 05/20/2023]
Affiliation(s)
- Jofre Herrero
- Department of Minerology, Petrology and Applied Geology, Faculty of Earth Sciences, University of Barcelona, Carrer Martí Franquès SN, Barcelona, Spain..
| | - Diana Puigserver
- Department of Minerology, Petrology and Applied Geology, Faculty of Earth Sciences, University of Barcelona, Carrer Martí Franquès SN, Barcelona, Spain
| | - Ivonne Nijenhuis
- Department of Isotope Biogeochemistry (ISOBIO), UFZ Centre for Environmental Research Leipzig-Halle, Permoserstr. 15, 04318 Leipzig, Germany
| | - Kevin Kuntze
- Department of Isotope Biogeochemistry (ISOBIO), UFZ Centre for Environmental Research Leipzig-Halle, Permoserstr. 15, 04318 Leipzig, Germany
| | - José M Carmona
- Department of Minerology, Petrology and Applied Geology, Faculty of Earth Sciences, University of Barcelona, Carrer Martí Franquès SN, Barcelona, Spain
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Kim M, Bae S. Immobilization and characterization of Fe(0) catalyst on NaOH-treated coal fly ash for catalytic reduction of p-nitrophenol. CHEMOSPHERE 2018; 212:1020-1029. [PMID: 30286531 DOI: 10.1016/j.chemosphere.2018.09.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 08/22/2018] [Accepted: 09/02/2018] [Indexed: 06/08/2023]
Abstract
In this study, coal fly ash (CFA), i.e., an industrial waste product created in large quantities by thermoelectric power plants, was treated with sodium hydroxide to afford a novel Fe (0) catalyst supported on alkaline-treated CFA. The NaOH-treated CFA (NCFA) exhibited a morphological change from slick spheres to pointed, leaf-like spheres, which was accompanied by a noticeable increase in specific surface area from 1.2 to 7.5 m2/g. Sequential addition of an Fe(III) precursor and NaBH4 solution to a suspension of NCFA resulted in the formation of Fe (0) particles on the surface of NCFA (Fe/NCFA). The catalytic activity of Fe/NCFA toward the reduction of p-nitrophenol (p-NP) was examined; among the Fe/NCFAs synthesized from different NCFAs (1, 3, and 7 M NaOH), the Fe/3 M NCFA sample displayed the highest activity owing to the highest Fe content on its surface, without leaching any toxic heavy metals. In addition, the effects of NaBH4 concentration, Fe loading, and catalyst dosage on the catalytic reduction of p-NP by Fe/NCFA were comprehensively investigated. Finally, the recyclability and stability of Fe/NCFA were examined, demonstrating the complete reduction of p-NP over four continuous recycling cycles. The present results demonstrate the marked potential of CFA as a component in reactive catalysts for the removal of environmental pollutants from wastewater.
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Affiliation(s)
- Minsun Kim
- Department of Civil and Environmental Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Sungjun Bae
- Department of Civil and Environmental Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea.
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23
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Chen Z, Zhang J, Liu M, Wu Y, Yuan Z. Immobilization of metals in contaminated soil from E-waste recycling site by dairy-manure-derived biochar. ENVIRONMENTAL TECHNOLOGY 2018; 39:2801-2809. [PMID: 28791916 DOI: 10.1080/09593330.2017.1365947] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 08/05/2017] [Indexed: 06/07/2023]
Abstract
E-waste is a growing concern around the world and varieties of abandoned E-waste recycling sites, especially in urban area, need to remediate immediately. The impacts of dairy-manure-derived biochars (BCs) on the amelioration of soil properties, the changes in the morphologies as well as the mobility of metals were studied to test their efficacy in immobilization of metals for a potential restoration of vegetation landscape in abandoned E-waste recycling site. The amendment with BCs produced positive effects on bioavailability and mobility reduction for Pb, Cd, Zn and Cu depending on BC ratio and incubation time. The BCs promoted the transformation of species of heavy metals to a more stable fraction, and the metals concentrations in Toxicity Characteristic Leaching Procedure extract declined significantly, especially Pb and Cu. Besides, the BCs ameliorated the substrate with increasing the soil pH, cations exchangeable capacity and available phosphorous, which suggested BC as a potential amendment material for abandoned E-waste recycling sites before restoration of vegetation landscape. Generally, the BC modified by alkaline treatment has a higher efficacy, probably due to increase of specific surface area and porosity as well as the functional groups after alkaline treatment.
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Affiliation(s)
- Zhiliang Chen
- a South China Institute of Environmental sciences , Guangzhou , Guangdong province , People's Republic of China
| | - Jianqiang Zhang
- a South China Institute of Environmental sciences , Guangzhou , Guangdong province , People's Republic of China
| | - Minchao Liu
- b College of Environment , Wuyi University , Jiangmen , Guangdong province , People's Republic of China
| | - Yingxin Wu
- b College of Environment , Wuyi University , Jiangmen , Guangdong province , People's Republic of China
| | - Zhihui Yuan
- b College of Environment , Wuyi University , Jiangmen , Guangdong province , People's Republic of China
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24
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Li R, Wang Z, Zhao X, Li X, Xie X. Magnetic biochar-based manganese oxide composite for enhanced fluoroquinolone antibiotic removal from water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:31136-31148. [PMID: 30187413 DOI: 10.1007/s11356-018-3064-1] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 08/24/2018] [Indexed: 06/08/2023]
Abstract
Magnetic biochar-based manganese oxide composite (MMB) and raw biochar (BC) were synthesized via pyrolysis at a temperature of 500 °C under anoxic conditions of potato stems and leaves, characterized, and successfully used for the removal of norfloxacin (NOR), ciprofloxacin (CIP), and enrofloxacin (ENR) as representative compounds of fluoroquinolone antibiotics (FQs). Characterization results suggested that Fe3O4 and MnOx are the dominant crystals in MMB. MMB possessed large surface area and pore volume than BC. Batch adsorption experiments showed that the maximum adsorption abilities of MMB for norfloxacin (NOR), ciprofloxacin (CIP), and enrofloxacin (ENR) were 6.94, 8.37, and 7.19 mg g-1. In comparison to BC, the adsorption abilities of MMB increased 1.2, 1.5, and 1.6 times for NOR, CIP, and ENR, respectively. The pseudo-second-order kinetic model and the Langmuir model correlated satisfactorily to the experimental data. Thermodynamic studies revealed that the adsorption processes were spontaneous and endothermic. The adsorption capacity of MMB decreased with increasing solution pH (between 3.0 and 10.0) and increasing ionic strength (0.001-0.1). The MMB with high FQ removal efficiency, easy separation, and desirable regeneration ability may have promising environmental applications for the removal of fluoroquinolone antibiotics from water environment.
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Affiliation(s)
- Ruining Li
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Zhaowei Wang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Xiating Zhao
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Xi Li
- School of Public Health, Lanzhou University, Lanzhou, 730000, China
| | - Xiaoyun Xie
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
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25
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Gu M, Sui Q, Farooq U, Zhang X, Qiu Z, Lyu S. Enhanced degradation of trichloroethylene in oxidative environment by nZVI/PDA functionalized rGO catalyst. JOURNAL OF HAZARDOUS MATERIALS 2018; 359:157-165. [PMID: 30016761 DOI: 10.1016/j.jhazmat.2018.07.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 06/08/2018] [Accepted: 07/03/2018] [Indexed: 06/08/2023]
Abstract
Nano zero-valent iron (nZVI) particles with higher reactivity have been recognized as more efficient catalysts than Fe(II) for the groundwater remediation. The rapid emergence of novel catalyst supports efficiently prevent the rapid aggregation of nZVI and further improve catalytic reactivity. However, the lack of ability to avoid the potential oxidation of bare nZVI-support structure in air environment hinders its wider application in the actual contaminated sites. In this study, nZVI on reduced graphene oxide (rGO) functionalized by polydopamine (PDA) (nZVI-PDA@rGO) was synthesized successfully and applied into sodium persulfate (SPS), potassium monopersulfate (PMS) and H2O2 oxidative environments to remove trichloroethylene (TCE). For comparison, nZVI supported on solely rGO was prepared. The XRD test displayed the stronger stability of α-Fe(0) in nZVI-PDA@rGO catalyst against oxidation exposed to air. Compared with nZVI-rGO, a core shell structure of nZVI-PDA@rGO was observed in TEM image obviously. The dosage tests showed nZVI-PDA@rGO had a better catalytic reactivity than nZVI-rGO for TCE removal at lower catalyst and oxidant dosages, i.e. PMS dosage: 0.3 mM, catalyst dosage: 50 mg L-1, TCE removal: 45.0% (nZVI-rGO) up to 99.6% (nZVI-PDA@rGO). TCE removal mechanisms were revealed through radical scavenger tests, demonstrating sulfate radicals played more important role in nZVI-PDA@rGO catalyzed-oxidant systems.
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Affiliation(s)
- Mengbin Gu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Qian Sui
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
| | - Usman Farooq
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
| | - Xiang Zhang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
| | - Zhaofu Qiu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
| | - Shuguang Lyu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
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26
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Zhou Y, Xiang Y, He Y, Yang Y, Zhang J, Luo L, Peng H, Dai C, Zhu F, Tang L. Applications and factors influencing of the persulfate-based advanced oxidation processes for the remediation of groundwater and soil contaminated with organic compounds. JOURNAL OF HAZARDOUS MATERIALS 2018; 359:396-407. [PMID: 30055429 DOI: 10.1016/j.jhazmat.2018.07.083] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 07/04/2018] [Accepted: 07/23/2018] [Indexed: 05/06/2023]
Abstract
Persulfate is the latest oxidant which is being used increasingly for the remediation of groundwater and soil contaminated with organic compounds. It is of great significant to offer readers a general summary about different methods of activating persulfate, mainly including heat-activated, metal ions-activated, UV-activated, and alkaline-activated. Meanwhile, in addition to persulfate concentration as an influencing factor for persulfate oxidation process, selected information like temperature, anions, cations, pH, and humic acid are presented and discussed. The last section focuses on the advantages of different activated persulfate processes, and the suggestions and research needs for persulfate-based advanced oxidation in the remediation of polluted groundwater and soil.
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Affiliation(s)
- Yaoyu Zhou
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
| | - Yujia Xiang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Yangzhuo He
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Yuan Yang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
| | - Jiachao Zhang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Lin Luo
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Hui Peng
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Chunhao Dai
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Feng Zhu
- South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China
| | - Lin Tang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
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27
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Yang F, Zhang S, Sun Y, Cheng K, Li J, Tsang DCW. Fabrication and characterization of hydrophilic corn stalk biochar-supported nanoscale zero-valent iron composites for efficient metal removal. BIORESOURCE TECHNOLOGY 2018; 265:490-497. [PMID: 29940499 DOI: 10.1016/j.biortech.2018.06.029] [Citation(s) in RCA: 148] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/09/2018] [Accepted: 06/11/2018] [Indexed: 06/08/2023]
Abstract
Pyrolyzing low-cost agro-waste into biochar is a promising means for waste biomass utilization. This study engineers corn stalk-derived biochar with abundant hydrophilic functional groups as a support material for iron nanoparticles impregnation (nZVI-HCS). Surface chemistry and morphology of nZVI-HCS composites is characterized by SEM, TEM, TG, XRD, FTIR, XPS, and BET techniques, which helps to elucidate the mechanisms of Pb2+, Cu2+ and Zn2+ removal from single and mixed-metal solutions in batch experiments. Equilibrium adsorption capacities can reach 195.1, 161.9 and 109.7 mg·g-1 for Pb2+, Cu2+ and Zn2+ at neutral medium after 6-h process, respectively. The engineered biochar with hierarchical pores can impregnate iron nanoparticles, serve as an adsorbent, and enhance metal reduction/precipitation. Rapid removal and high performance can be maintained after five regeneration/reuse cycles. Multiple interaction mechanisms including adsorption, precipitation, reduction and complexation are responsible for metal removal by nZVI-HCS composites, which can be a novel biowaste-derived material for wastewater treatment.
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Affiliation(s)
- Fan Yang
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Shuaishuai Zhang
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Yuqing Sun
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Kui Cheng
- Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Jiangshan Li
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
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28
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Gao J, Yang L, Liu Y, Shao F, Liao Q, Shang J. Scavenging of Cr(VI) from aqueous solutions by sulfide-modified nanoscale zero-valent iron supported by biochar. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.06.033] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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29
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Wang B, Gao B, Wan Y. Entrapment of ball-milled biochar in Ca-alginate beads for the removal of aqueous Cd(II). J IND ENG CHEM 2018; 61:161-168. [PMID: 30828252 DOI: 10.1016/j.jiec.2017.12.013] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A novel adsorbent was synthesized through the entrapment of ball-milled biochar in Ca-alginate beads for the removal of aqueous Cd(II). Batch adsorption experiments were conducted to compare Cd(II) adsorption characteristics of ball-milled biochar (BMB), Ca-alginate (CA), and Ca-alginate entrapped ball-milled biochar (CA-BMB). All the tested adsorbents showed excellent sorption ability. The maximum Cd(II) adsorption capacity estimated with Langmuir isotherm modeling was 251.8 mg g-1 for CA, 227.1 mg g-1 for CA-BMB, and 40.0 mg g-1 for BMB. The results demonstrate that entrapment of ball-milled biochar in Ca-alginate provides a low-cost and high-effective way for the removal of aqueous Cd(II).
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Affiliation(s)
- Bing Wang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Bin Gao
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Yongshan Wan
- National Health and Environmental Effects Research Laboratory, US EPA, Gulf Breeze, FL 32561, USA
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30
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Zhang Y, Zhao L, Yang Y, Sun P. Degradation of the antibiotic ornidazole in aqueous solution by using nanoscale zero-valent iron particles: kinetics, mechanism, and degradation pathway. RSC Adv 2018; 8:35062-35072. [PMID: 35547032 PMCID: PMC9087690 DOI: 10.1039/c8ra04079f] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 08/01/2018] [Indexed: 11/24/2022] Open
Abstract
Degradation of ornidazole (ONZ) by nanoscale zero-valent iron (nZVI) particles was investigated for the first time in this work. The results showed that ONZ was almost completely degraded within 30 min by 0.1 g L−1 nZVI at pH 5.8 and 25 °C. The effects of the nZVI dose, initial ONZ concentration, pH, and temperature on ONZ removal were systematically investigated, and removal of ONZ was followed by a pseudo-first-order kinetics model. Experimental results demonstrated that higher nZVI doses, lower initial ONZ concentrations, and lower pH levels could increase the pseudo-first-order rate constant (kobs) of ONZ removal. While higher temperatures favored removal, the activation energy results suggested that mass transfer was the limiting step during the removal process. The possible effect of oxygen was ruled out by introducing hydroxyl radical scavengers into the experiment. The variation of ONZ concentrations and total organic carbon (TOC) contents in the solution indicated that adsorption was not the main mechanism. The possibility that precipitation was the main mechanism was also excluded by the results for the change in pH and effect of pH. The characterization of nZVI before and after the reaction indicated that ONZ was reduced on the surface of nZVI, which was the main mechanism. Three intermediates and two final products were detected based on the results of UV-vis and high performance liquid chromatography/mass spectrometry (HPLC-MS) analyses. Dechlorination, nitro reduction, N-denitration, and cleavage were all involved in the entire reaction process, and therefore a complicated potential degradation pathway was proposed. The whole possible process of ONZ removal by nZVI. The reduction on the surface of nZVI was the main mechanism. A potential pathway including dechlorination, nitro reduction, N-denitration, and cleavage was proposed for the degradation process.![]()
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Affiliation(s)
- Yanchang Zhang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
- People's Republic of China
| | - Lin Zhao
- School of Environmental Science and Engineering
- Tianjin University
- Tianjin 300350
- People's Republic of China
| | - Yongkui Yang
- School of Environmental Science and Engineering
- Tianjin University
- Tianjin 300350
- People's Republic of China
| | - Peizhe Sun
- School of Environmental Science and Engineering
- Tianjin University
- Tianjin 300350
- People's Republic of China
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31
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Li J, Zhang X, Sun Y, Liang L, Pan B, Zhang W, Guan X. Advances in Sulfidation of Zerovalent Iron for Water Decontamination. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:13533-13544. [PMID: 29135239 DOI: 10.1021/acs.est.7b02695] [Citation(s) in RCA: 147] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Sulfidation has gained increasing interest in recent years for improving the sequestration of contaminants by zerovalent iron (ZVI). In view of the bright prospects of the sulfidated ZVI (S-ZVI), this review comprehensively summarized the latest developments in sulfidation of ZVI, particularly that of nanoscale ZVI (S-nZVI). The milestones in development of S-ZVI technology including its background, enlightenment, synthesis, characterization, water remediation and treatment, etc., are summarized. Under most circumstances, sulfidation can enhance the sequestration of various organic compounds and metal(loid)s by ZVI to various extents. In particular, the reactivity of S-ZVI toward contaminants is strongly dependent on S/Fe molar ratio, sulfidation method, and solution chemistry. Additionally, sulfidation can improve the selectivity of ZVI toward targeted contaminant over water under anaerobic conditions. The mechanisms of sulfidation-induced improvement in contaminants sequestration by ZVI are also summarized. Finally, this review identifies the current knowledge gaps and future research needs of S-ZVI for environmental application.
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Affiliation(s)
- Jinxiang Li
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University , Shanghai 200092, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security , Shanghai 200092, P.R. China
| | - Xueying Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University , Shanghai 200092, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security , Shanghai 200092, P.R. China
| | - Yuankui Sun
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University , Shanghai 200092, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security , Shanghai 200092, P.R. China
| | - Liping Liang
- College of Life Science, Shaoxing University , Shaoxing 312000, P.R. China
| | - Bingcai Pan
- State Key Laboratory of Pollution Control and Resources Reuse, School of Environment, Nanjing University , Nanjing 210023, Jiangsu P.R. China
| | - Weiming Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, School of Environment, Nanjing University , Nanjing 210023, Jiangsu P.R. China
| | - Xiaohong Guan
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University , Shanghai 200092, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security , Shanghai 200092, P.R. China
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32
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Zhao Q, Mao Q, Zhou Y, Wei J, Liu X, Yang J, Luo L, Zhang J, Chen H, Chen H, Tang L. Metal-free carbon materials-catalyzed sulfate radical-based advanced oxidation processes: A review on heterogeneous catalysts and applications. CHEMOSPHERE 2017; 189:224-238. [PMID: 28942248 DOI: 10.1016/j.chemosphere.2017.09.042] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 09/07/2017] [Accepted: 09/10/2017] [Indexed: 05/23/2023]
Abstract
In recent years, advanced oxidation processes (AOPs), especially sulfate radical based AOPs have been widely used in various fields of wastewater treatment due to their capability and adaptability in decontamination. Recently, metal-free carbon materials catalysts in sulfate radical production has been more and more concerned because these materials have been demonstrated to be promising alternatives to conventional metal-based catalysts, but the review of metal-free catalysts is rare. The present review outlines the current state of knowledge on the generation of sulfate radical using metal-free catalysts including carbon nanotubes, graphene, mesoporous carbon, activated carbon, activated carbon fiber, nanodiamond. The mechanism such as the radical pathway and non-radical pathway, and factors influencing of the activation of sulfate radical was also be revealed. Knowledge gaps and research needs have been identified, which include the perspectives on challenges related to metal-free catalyst, heterogeneous metal-free catalyst/persulfate systems and their potential in practical environmental remediation.
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Affiliation(s)
- Qingxia Zhao
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Qiming Mao
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Yaoyu Zhou
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
| | - Jianhong Wei
- College of Biological Science and Technology, Hunan Agricultural University, Changsha 410128, China.
| | - Xiaocheng Liu
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Junying Yang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Lin Luo
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Jiachao Zhang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Hong Chen
- School of Hydraulic Engineering, Changsha University of Science and Technology, Changsha, Hunan 410004, China
| | - Hongbo Chen
- College of Environment and Resources, Xiangtan University, Xiangtan 411105, China
| | - Lin Tang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
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