1
|
Loh NYL, Tee WT, Hanson S, Chiu WS, Hiew BYZ, Khiew PS, Lee LY. Enhanced removal of lead and zinc by a 3D aluminium sulphate-functionalised graphene aerogel as an effective adsorption system. CHEMOSPHERE 2024; 362:142537. [PMID: 38844101 DOI: 10.1016/j.chemosphere.2024.142537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 05/26/2024] [Accepted: 06/03/2024] [Indexed: 06/23/2024]
Abstract
The discharge of heavy metals into the environment has adversely affected the aquatic ecosystem due to their toxic and non-biodegradable nature. In this research, a three-dimensional graphene oxide/carboxymethylcellulose/aluminium sulphate (GOCAS) aerogel was synthesised and evaluated as a novel means for lead and zinc removal. The GOCAS aerogel was prepared via ice-templating of graphene oxide with carboxymethylcellulose and aluminium sulphate as the crosslinking and functionalisation additives. Characterisation of the aerogel by various analytical techniques confirmed the successful integration of the chemical additives. The hydroxyl and sulphate groups in the aerogel were found to participate in the adsorption of both metals. The equilibrium of lead adsorption was found to correlate well to the Freundlich isotherm, while zinc adsorption fitted closely the Langmuir isotherm. The kinetic adsorption behaviour of both metals was best described as pseudo-second-order. The interactive influences of concentration, temperature, contact time and adsorbent dose on the metal removal were explored by a central composite design, and the optimum adsorption capacity for lead was determined to be 138.7 mg/g at a GOCAS dose of 20 mg, initial concentration of 100 mg/L, temperature of 50 °C and contact time of 45 min. The optimum adsorption capacity for zinc was 52.69 mg/g at 30 mg, 65 mg/L, 45 °C and 40 min. Furthermore, regeneration studies with hydrochloric acid eluant were successfully conducted for up to four adsorption-desorption cycles. Overall, this work demonstrates that GOCAS aerogel is a viable nanosorbent for the adsorption of lead and zinc from water systems.
Collapse
Affiliation(s)
- Nicholas Yung Li Loh
- Department of Chemical and Environmental Engineering, University of Nottingham Malaysia, Semenyih 43500, Selangor, Malaysia; Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Wan Ting Tee
- Department of Chemical and Environmental Engineering, University of Nottingham Malaysia, Semenyih 43500, Selangor, Malaysia
| | - Svenja Hanson
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Wee Siong Chiu
- Low Dimensional Materials Research Centre, Department of Physics, Faculty of Science, University Malaya, Kuala Lumpur 50603, Malaysia
| | - Billie Yan Zhang Hiew
- School of Engineering and Physical Sciences, Heriot-Watt University Malaysia, Putrajaya 62200, Malaysia
| | - Poi Sim Khiew
- Centre of Nanotechnology and Advanced Materials, Faculty of Science and Engineering, University of Nottingham Malaysia, Semenyih 43500, Selangor, Malaysia
| | - Lai Yee Lee
- Department of Chemical and Environmental Engineering, University of Nottingham Malaysia, Semenyih 43500, Selangor, Malaysia.
| |
Collapse
|
2
|
Mladenović Nikolić N, Kljajević L, Nenadović SS, Potočnik J, Knežević S, Dolenec S, Trivunac K. Adsorption Efficiency of Cadmium (II) by Different Alkali-Activated Materials. Gels 2024; 10:317. [PMID: 38786234 PMCID: PMC11121154 DOI: 10.3390/gels10050317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 04/30/2024] [Accepted: 05/01/2024] [Indexed: 05/25/2024] Open
Abstract
The objective of this study was to demonstrate the potential utilization of fly ash (FA), wood ash (WA), and metakaolin (MK) in developing new alkali-activated materials (AAMs) for the removal of cadmium ions from waste water. The synthesis of AAMs involved the dissolution of solid precursors, FA, WA, and MK, by a liquid activator (Na2SiO3 and NaOH). In concentrated solutions of the activator, the formation of an aluminosilicate gel structure occurred. DRIFT spectroscopy of the AAMs indicated main vibration bands between 1036 cm-1 and 996 cm-1, corresponding to Si-O-Si/Si-O-Al bands. Shifting vibration bands were seen at 1028 cm-1 to 1021 cm-1, indicating that the Si-O-Si/Si-O-Al bond is elongating, and the bond angle is decreasing. Based on the X-ray diffraction results, alkali-activated samples consist of an amorphous phase and residual mineral phases. The characteristic "hump" of an amorphous phase in the range from 20 to 40° 2θ was observed in FA and in all AWAFA samples. By the XRD patterns of the AAMs obtained by the activation of a solid three-component system, a new crystalline phase, gehlenite, was identified. The efficiency of AAMs in removing cadmium ions from aqueous solutions was tested under various conditions. The highest values of adsorption capacity, 64.76 mg/g (AWAFA6), 67.02 mg/g (AWAFAMK6), and 72.84 mg/g mg/g (AWAMK6), were obtained for materials activated with a 6 M NaOH solution in the alkali activator. The Langmuir adsorption isotherm and pseudo-second kinetic order provided the best fit for all investigated AAMs.
Collapse
Affiliation(s)
- Nataša Mladenović Nikolić
- Department for Materials, “Vinča“ Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11 000 Belgrade, Serbia; (L.K.); (S.S.N.); (S.K.)
| | - Ljiljana Kljajević
- Department for Materials, “Vinča“ Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11 000 Belgrade, Serbia; (L.K.); (S.S.N.); (S.K.)
| | - Snežana S. Nenadović
- Department for Materials, “Vinča“ Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11 000 Belgrade, Serbia; (L.K.); (S.S.N.); (S.K.)
| | - Jelena Potočnik
- Department of Atomic Physics, “Vinča“ Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11 000 Belgrade, Serbia;
| | - Sanja Knežević
- Department for Materials, “Vinča“ Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11 000 Belgrade, Serbia; (L.K.); (S.S.N.); (S.K.)
| | - Sabina Dolenec
- Slovenian National Building and Civil Engineering Institute, Dimičeva ulica 12, 1000 Ljubljana, Slovenia;
- Department of Geology, Faculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva ulica 12, 1000 Ljubljana, Slovenia
| | - Katarina Trivunac
- Department of Analytical Chemistry and Quality Control, Faculty of Technology and Metallurgy, University of Belgrade, 11 000 Belgrade, Serbia;
| |
Collapse
|
3
|
Prabhakar AK, Mohan BC, Tai MH, Yao Z, Su W, Lay-Ming Teo S, Wang CH. Green, non-toxic and efficient adsorbent from hazardous ash waste for the recovery of valuable metals and heavy metal removal from waste streams. CHEMOSPHERE 2023; 329:138524. [PMID: 37019407 DOI: 10.1016/j.chemosphere.2023.138524] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 03/23/2023] [Accepted: 03/25/2023] [Indexed: 05/03/2023]
Abstract
As compared to alkali-activated geopolymers with phosphoric acid which may be used in high concentrations resulting in disposal concerns, acid-based geopolymers may have superior properties. A novel green method of converting waste ash to a geopolymer for use in adsorption applications such as water treatment is presented here. We use methanesulfonic acid, a green chemical with high acid strength and biodegradability to form geopolymers from coal and wood fly ashes. The geopolymer is characterized for its physico-chemical properties and tested for heavy metal adsorption. The material specifically adsorbs iron and lead. The geopolymer is coupled to activated carbon forming a composite, which adsorbs silver (precious metal) and manganese (hazardous metal) significantly. The adsorption pattern complies with pseudo-second order kinetics and Langmuir isotherm. Toxicity studies show while activated carbon is highly toxic, the geopolymer and the carbon-geopolymer composite have relatively less toxicity concerns.
Collapse
Affiliation(s)
- Arun Kumar Prabhakar
- Energy and Environmental Sustainability Solutions for Megacities (E2S2), Campus for Research Excellence and Technological Enterprise (CREATE), Singapore 138602, Singapore; NUS Environmental Research Institute, National University of Singapore, 1 Create Way, Create Tower #15-02, 138602, Singapore
| | - Babu Cadiam Mohan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576 Singapore
| | - Ming Hang Tai
- Energy and Environmental Sustainability Solutions for Megacities (E2S2), Campus for Research Excellence and Technological Enterprise (CREATE), Singapore 138602, Singapore; NUS Environmental Research Institute, National University of Singapore, 1 Create Way, Create Tower #15-02, 138602, Singapore
| | - Zhiyi Yao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576 Singapore
| | - Weiling Su
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576 Singapore
| | - Serena Lay-Ming Teo
- St John's Island National Marine Laboratory, Tropical Marine Science Institute, National University of Singapore, 18 Kent Ridge Road, Singapore 119227
| | - Chi-Hwa Wang
- Energy and Environmental Sustainability Solutions for Megacities (E2S2), Campus for Research Excellence and Technological Enterprise (CREATE), Singapore 138602, Singapore; Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576 Singapore.
| |
Collapse
|
4
|
Yang Y, Wang L, Zhao H, Yan F, Li S, Guo B, Luo C, Huang X, Ji P. Utilization of KOH-modified fly ash for elimination from aqueous solutions of potentially toxic metal ions. ENVIRONMENTAL RESEARCH 2023; 223:115396. [PMID: 36736756 DOI: 10.1016/j.envres.2023.115396] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/15/2022] [Accepted: 01/29/2023] [Indexed: 06/18/2023]
Abstract
Long-term accumulation of toxic heavy metals in the environment was a potential hidden danger. High energy consumption, complicated operation and low adsorption capacity were the disadvantages of most current adsorbents. This study used one-step modification of fly ash (FA) by low-temperature melting method with KOH as the activator to generate modified fly ash (KFA) with high adsorption capacity to remove heavy metals from aqueous solutions. Various characterization results revealed a destruction that occurred on the surface structure of adsorbent, 12 times increase in specific surface area, and metal ions were successfully adsorbed onto KFA surface. Furthermore, adsorption proceeded most favorably at pH of 5, the presence of ionic strength and co-existing cations significantly influenced the adsorption effects. The description of adsorption data was more suitable by pseudo-second-order kinetics and Langmuir isotherm models. And in single system at 25 °C, for Pb(II), Cu(II), and Cd (II), the qm were 337.41, 310.09 and 125.00 mg·g-1. However, in ternary system, the qm decreased for all three ions in the order Pb(II) > Cu(II) > Cd(II), which was different from the law in single system, and the Pb(II) adsorption was found to have a significant inhibited effect on adsorption of Cd(II) and Cu(II). The adsorption mechanisms including ion exchange, electrostatic attraction and complexation were revealed. And by exploring the bioaccessibility of absorbed heavy metals in four simulated digestive fluids, it was found that KFA could load heavy metal ions and enable their release in organisms and other aquatic environments, which provided the possibility for subsequent related studies. Therefore, KFA with low energy consumption and high adsorption capacity is equipped a prospective development space on removing heavy metals from wastewater.
Collapse
Affiliation(s)
- Yue Yang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Lu Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Hanghang Zhao
- School of Water and Environment, Chang'an University, Xi'an, 710054, Shaanxi, China
| | - Fan Yan
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Shaohua Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Bin Guo
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Chi Luo
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Xunrong Huang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Puhui Ji
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China; Shaanxi Ghanshan Cui Environmental Protection Technology Co., Ltd., Room 202-2, Zone A, China-South Korea Industrial Park, Gaoke 3rd Road, Shaanxi Province, 712000, China.
| |
Collapse
|
5
|
Abd Khalil AT, Shah Buddin MMH, Puasa SW, Ahmad AL. Reuse of waste cooking oil (WCO) as diluent in green emulsion liquid membrane (GELM) for zinc extraction. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:45244-45258. [PMID: 36705837 DOI: 10.1007/s11356-023-25208-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 01/04/2023] [Indexed: 06/18/2023]
Abstract
Zinc (Zn) was identified as one of the most toxic heavy metals and often found contaminating the water sources as a result of inefficient treatment of industrial effluent. A green emulsion liquid membrane (GELM) was proposed in this study as a method to minimize the concentration of Zn ions in an aqueous solution. Instead of the common petroleum-based diluent, the emulsion is reformulated with untreated waste cooking oil (WCO) collected from the food industry as a sustainable and cheaper diluent. It also includes Bis(2-ethylhexyl) phosphate (D2EHPA) as a carrier, Span 80 as a surfactant, sulfuric acid (H2SO4) as an internal phase, and ZnSO4 solution as an external phase. Such formulation requires a thorough understanding of the oil characteristics as well as the interaction of the components in the membrane phase. The compatibility of WCO and D2EHPA, as well as the external phase pH, was confirmed via a liquid-liquid extraction (LLE) method. To obtain the best operating conditions for Zn extraction using GELM, the extraction time and speed, carrier, surfactant and internal phase concentrations, and W/O ratio were varied. 95.17% of Zn ions were removed under the following conditions; 0.001 M of H2SO4 in external phase, 700 rpm extraction speed for 10 min, 8 wt% of carrier and 4 wt% of surfactant concentrations, 1:4 of W/O ratio, and 1 M of internal phase concentration.
Collapse
Affiliation(s)
- Afiqah Tasneem Abd Khalil
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, 40450, Shah Alam, Selangor, Malaysia
| | | | - Siti Wahidah Puasa
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, 40450, Shah Alam, Selangor, Malaysia.
| | - Abdul Latif Ahmad
- School of Chemical Engineering, Universiti Sains Malaysia Engineering Campus, 14300, Nibong Tebal, Pulau Pinang, Malaysia
| |
Collapse
|
6
|
Praipipat P, Ngamsurach P, Roopkhan N. Zeolite A powder and beads from sugarcane bagasse fly ash modified with iron(III) oxide-hydroxide for lead adsorption. Sci Rep 2023; 13:1873. [PMID: 36725878 PMCID: PMC9892519 DOI: 10.1038/s41598-023-29055-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 01/30/2023] [Indexed: 02/03/2023] Open
Abstract
The discharging of lead-contaminated wastewater is a concern because of its toxicity to living organisms and water quality resulting in dangerous water consumption, so it is highly recommended to remove lead from wastewater to be below water quality standards for a safe environment. Zeolite A sugarcane bagasse fly ash powder (ZB), zeolite A sugarcane bagasse fly ash powder mixed iron(III) oxide-hydroxide (ZBF), zeolite A sugarcane bagasse fly ash beads (ZBB), zeolite A sugarcane bagasse fly ash powder mixed iron(III) oxide-hydroxide beads (ZBFB), and zeolite A sugarcane bagasse fly ash beads coated iron(III) oxide-hydroxide (ZBBF) were synthesized and characterized in various techniques. Their lead removal efficiencies were investigated by batch experiments, adsorption isotherms, and kinetics. The specific surface area, pore volume, and pore size of ZB were close values to zeolite A standard (STD), and ZBF had the highest specific surface area and the smallest pore size than others. ZB and ZBF demonstrated crystalline phases whereas ZBB, ZBFB, and ZBBF were amorphous phases. The surface morphology of ZB was a cubic shape similar to STD. ZBF demonstrated an agglomerated formation of ZB and iron(III) oxide-hydroxide whereas ZBFB and ZBBF had sphere shapes with coarse surfaces. Si, Al, O, Fe, Na, Ca, O-H, (Si, Al)-O, H2O, and D4R were detected in all materials. The surface charges of all zeolite A materials had negatively charged at all pH values, and their surfaces increased more negatively charged with increasing pH value which pH 5 illustrated as the highest negatively charged in all materials. Their lead removal efficiencies were higher than 82%. Langmuir isotherm and pseudo-second-order kinetic models were well explained for their adsorption patterns and mechanisms. Finally, ZBBF is a good offer for applying in industrial wastewater treatment systems because of its easy operation and saving costs than ZBF.
Collapse
Affiliation(s)
- Pornsawai Praipipat
- grid.9786.00000 0004 0470 0856Department of Environmental Science, Khon Kaen University, Khon Kaen, 40002 Thailand ,grid.9786.00000 0004 0470 0856Environmental Applications of Recycled and Natural Materials Laboratory (EARN), Khon Kaen University, Khon Kaen, 40002 Thailand
| | - Pimploy Ngamsurach
- grid.9786.00000 0004 0470 0856Department of Environmental Science, Khon Kaen University, Khon Kaen, 40002 Thailand ,grid.9786.00000 0004 0470 0856Environmental Applications of Recycled and Natural Materials Laboratory (EARN), Khon Kaen University, Khon Kaen, 40002 Thailand
| | - Naritsara Roopkhan
- grid.9786.00000 0004 0470 0856Department of Environmental Science, Khon Kaen University, Khon Kaen, 40002 Thailand
| |
Collapse
|
7
|
Khalil ATA, Buddin MMHS, Puasa SW, Ahmad AL. Reuse of Waste Cooking Oil (WCO) as Diluent in Green Emulsion Liquid Membrane (GELM) for Zinc Extraction.. [DOI: 10.21203/rs.3.rs-1251988/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Abstract
Zinc (Zn) was identified as one of the most toxic heavy metals and often found contaminating the water sources as a result of inefficient treatment of industrial effluent. A Green Emulsion Liquid Membrane (GELM) was proposed in this study as a method to minimize the concentration of Zn ions in an aqueous solution. Instead of the common petroleum-based diluent, the emulsion is reformulated with untreated waste cooking oil (WCO) collected from the food industry as a sustainable and cheaper diluent. It also includes Bis(2-ethylhexyl) phosphate (D2EHPA) as carrier, Span 80 as surfactant, sulfuric acid (H2SO4) as internal phase and ZnSO4 solution as external phase. Such formulation requires a thorough understanding of the oil characteristics as well as the interaction of the components in the membrane phase. The compatibility of WCO and D2EHPA, as well as the external phase pH was confirmed via liquid-liquid extraction (LLE) method. To obtain the best operating conditions for Zn extraction using GELM, the extraction time and speed, carrier, surfactant and internal phase concentrations, and W/O ratio were varied. 95.17% of Zn ions were removed under the following conditions; 0.001M of H2SO4 in external phase, 700 rpm extraction speed for 10 minutes, 8 wt% of carrier and 4 wt% of surfactant concentrations, 1:4 of W/O ratio and 1 M of internal phase concentration.
Collapse
|
8
|
Chowdhury IR, Chowdhury S, Mazumder MAJ, Al-Ahmed A. Removal of lead ions (Pb 2+) from water and wastewater: a review on the low-cost adsorbents. APPLIED WATER SCIENCE 2022; 12:185. [PMID: 35754932 PMCID: PMC9213643 DOI: 10.1007/s13201-022-01703-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 05/27/2022] [Indexed: 05/31/2023]
Abstract
The presence of lead compounds in the environment is an issue. In particular, supply water consumption has been reported to be a significant source of human exposure to lead compounds, which can pose an elevated risk to humans. Due to its toxicity, the International Agency for Research on Cancer and the US Environmental Protection Agency (USEPA) have classified lead (Pb) and its compounds as probable human carcinogens. The European Community Directive and World Health Organization have set the maximum acceptable lead limits in tap water as 10 µg/L. The USEPA has a guideline value of 15 µg/L in drinking water. Removal of lead ions from water and wastewater is of great importance from regulatory and health perspectives. To date, several hundred publications have been reported on the removal of lead ions from an aqueous solution. This study reviewed the research findings on the low-cost removal of lead ions using different types of adsorbents. The research achievements to date and the limitations were investigated. Different types of adsorbents were compared with respect to adsorption capacity, removal performances, sorbent dose, optimum pH, temperature, initial concentration, and contact time. The best adsorbents and the scopes of improvements were identified. The adsorption capacity of natural materials, industrial byproducts, agricultural waste, forest waste, and biotechnology-based adsorbents were in the ranges of 0.8-333.3 mg/g, 2.5-524.0 mg/g, 0.7-2079 mg/g, 0.4-769.2 mg/g, and 7.6-526.0 mg/g, respectively. The removal efficiency for these adsorbents was in the range of 13.6-100%. Future research to improve these adsorbents might assist in developing low-cost adsorbents for mass-scale applications.
Collapse
Affiliation(s)
- Imran Rahman Chowdhury
- Department of Civil and Environmental Engineering, King Fahd University of Petroleum and Minerals, Dhahran, 31261 Saudi Arabia
| | - Shakhawat Chowdhury
- Department of Civil and Environmental Engineering, King Fahd University of Petroleum and Minerals, Dhahran, 31261 Saudi Arabia
- Interdisciplinary Research Center for Construction and Building Materials, King Fahd University of Petroleum and Minerals, Dhahran, 31261 Saudi Arabia
| | - Mohammad Abu Jafar Mazumder
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran, 31261 Saudi Arabia
- Interdisciplinary Research Center for Advanced Materials, King Fahd University of Petroleum and Minerals, Dhahran, 31261 Saudi Arabia
| | - Amir Al-Ahmed
- Interdisciplinary Research Center for Renewable Energy and Power Systems, King Fahd University of Petroleum and Minerals, Dhahran, 31261 Saudi Arabia
| |
Collapse
|
9
|
Li D, Liang Y, Wang H, Zhou R, Yan X, Wang L, Zhang H. Investigation on the effects of fluid intensification based preconditioning process on the decarburization enhancement of fly ash. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2021.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
10
|
Zhang L, Liu W, Zhang Y, Mu C, Zhong L, Wang Y, Zhang X, Xue J. Carbon‐Coated Magnetic Fly Ash Modified with Guanylthiourea and Polydopamine for Simultaneous Removal of Cu(II) and Pb(II) in Acidic Aqueous Solutions. ChemistrySelect 2021. [DOI: 10.1002/slct.202102545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Liang Zhang
- School of Chemistry and Chemical Engineering Xi'an University of Architecture and Technology Xi'an Shaanxi 710055 China
- Shanxi Provincial Key Laboratory of Gold and Resource Xi'an University of Architecture and Technology Xi'an Shaanxi 710055 China
| | - Wenwen Liu
- School of Chemistry and Chemical Engineering Xi'an University of Architecture and Technology Xi'an Shaanxi 710055 China
| | - Yu Zhang
- School of Chemistry and Chemical Engineering Xi'an University of Architecture and Technology Xi'an Shaanxi 710055 China
| | - Chaoqun Mu
- School of Chemistry and Chemical Engineering Xi'an University of Architecture and Technology Xi'an Shaanxi 710055 China
| | - Lvling Zhong
- School of Chemistry and Chemical Engineering Xi'an University of Architecture and Technology Xi'an Shaanxi 710055 China
| | - Yao Wang
- School of Chemistry and Chemical Engineering Xi'an University of Architecture and Technology Xi'an Shaanxi 710055 China
| | - Xiaomin Zhang
- School of Resources Engineering Xi'an University of Architecture and Technology Xi'an Shaanxi 710055 China
| | - Juanqin Xue
- School of Chemistry and Chemical Engineering Xi'an University of Architecture and Technology Xi'an Shaanxi 710055 China
| |
Collapse
|
11
|
Preparation and optimization of a low-cost adsorbent for heavy metal ions from red mud using fraction factorial design and Box-Behnken response methodology. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127198] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|