Article
Green & Sustainable Science & Technology
Haijie He, Erpei Xu, Zhanhong Qiu, Tao Wu, Shifang Wang, Yuhua Lu, Guannian Chen
Summary: This study investigated the adsorption of phenol onto cetyltrimethylammonium bromide modified bentonite (OMB). The results showed that the adsorption rate of phenol was positively correlated with the initial concentration, and the maximum adsorption capacity was 10.1 mg/g. The pseudo-second-order kinetic model was found to better describe the adsorption kinetics. Additionally, the properties of OMB samples with different adsorption times were analyzed using SEM and XRD.
Article
Polymer Science
Alisa (Fern) Phuekphong, Kamonnart (Jaa) Imwiset, Makoto Ogawa
Summary: The study investigated the removal of triclosan from water using 2C18-MAG and 2C18-BT as adsorbents. The results showed that 2C18-MAG had a better adsorption capacity for triclosan, indicating the potential of organically modified layered silicates as adsorbents for removing organic contaminants from aqueous environments.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Ruiming Song, Zhimei Li, Wanli Li, Ya An, Mei Li, Haoli Qin, Chengshuai Liu
Summary: In this study, thiol-modified bentonite was prepared and its adsorption performance for cadmium ions was investigated. It was found that the modified bentonite had better adsorption capacity and stability compared to natural bentonite. The Langmuir equation was the best-fitted adsorption isotherm model, and the pseudo-second-order model described the adsorption-desorption process most accurately.
RESEARCH ON CHEMICAL INTERMEDIATES
(2022)
Article
Environmental Sciences
Ali Akbar Mohammadi, Zohreh Niazi, Kambiz Heidari, Amir Afarinandeh, Malihe Samadi Kazemi, Gholam Ali Haghighat, Yasser Vasseghian, Shahabaldin Rezania, Anahita Barghi
Summary: Metal-organic frameworks (MOFs) are promising porous nanomaterials in the field of environmental remediation. In this study, Ni-MOF and Fe-MOF were analyzed for their structure using various characterization methods. The results showed that Fe-MOF exhibited remarkable adsorption of organic and inorganic model contaminants, indicating a favorable adsorption process.
ENVIRONMENTAL RESEARCH
(2022)
Article
Biophysics
Usman Rasheed, Qurat Ul Ain, Muhammad Yaseen, Xiaohua Yao, Bin Liu
Summary: The study demonstrated the effective sequestration of various aflatoxins using tannic acid-added pillared bentonite, showing promising potential for the remediation of hazardous pollutants in food and poultry industrial products.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Environmental Sciences
Sami Ullah, Altaf Ur Rahman, Fida Ullah, Abdur Rashid, Tausif Arshad, Eva Viglasova, Michal Galambos, Niyaz Mohammad Mahmoodi, Haseeb Ullah
Summary: The study evaluated the potential of three different natural inorganic clays for removing malachite green dye from aqueous solutions. Results showed that Langmuir isotherm model and pseudo-first-order kinetic model best described the adsorption behavior of MG, and natural inorganic clays with higher surface area can be effective adsorbents for removing MG dye.
Article
Multidisciplinary Sciences
Ali H. Jawad, Shihab Ezzuldin M. Saber, Ahmed Saud Abdulhameed, Ahlam M. Farhan, Zeid A. ALOthman, Lee D. Wilson
Summary: This research aimed to use natural Iraqi bentonite clay (NIBC) to adsorb the organic dye (methylene blue, MB) from aqueous media. Analytical methods were performed to analyze the physicochemical characteristics of NIBC. The study examined the impacts of adsorbent dosage, pH, and initial concentrations on the removal of MB. Results showed that NIBC had a maximum adsorption capacity of 256 mg/g for MB.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2023)
Article
Environmental Sciences
Xinyuan Yang, Wenfang Zhu, Fangyuan Chen, Yali Song, Ya Yu, Haifeng Zhuang
Summary: Retinervus luffae fructus biochar (RLFB) and ZnCl2 pretreated Retinervus luffae fructus biochar (ZRLFB) were prepared by pyrolysis for dye adsorption and granular sludge cultivation. Results showed that ZRLFB had higher adsorption effect on the dyes compared to RLFB. The adsorption process can be described using pseudo-second-order mechanisms and Langmuir model.
Article
Chemistry, Physical
Raisarani Sharma, Pravin K. Kar, Sukalyan Dash
Summary: This study investigated the adsorption of some styrylpyridinium dyes on a silica scaffold from organic media, confirming the phenomenon through various techniques. The impacts of solvent environment, substituent, adsorbent dosage, and temperature on adsorption extent and rate were examined, revealing a second order exothermic mode of adsorption and monolayer formation on the silica surface.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Engineering, Environmental
Abdulkadir Tanimu, Khalid Alhooshani
Summary: Organically modified materials are widely used adsorbents for Hg(II) removal due to their abundance of organic and inorganic substrates with desirable properties and ease of surface chemical modifications. Future research in the design and development of advanced adsorbents can be guided by a deeper understanding of the chemical reactions and their relation to the Hg(II) adsorption mechanism.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Yingya Wang, Hanbing Zhang, Muhammad Yaseen, Zhangfa Tong, Ninghua Chen, Huazhen Shi
Summary: Organic modification of magnetic alkaline Ca-bentonite resulted in the preparation of a film material with magnetic separation ability and enhanced removal performance for heavy metal cations. The modified material exhibited higher adsorption capacity for heavy metal ions and could be efficiently recycled with minimal decrease in adsorption capacity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Materials Science, Characterization & Testing
Xiaoqing Cai, Ying Chen, Rao-ping Liao, Ze-xiang Wu, Chuang Yu, Tiantian Shi, Yinxia Wu, Jifang Jiang
Summary: A study investigated the adsorption characteristics of sodium polyacrylate-modified bentonite (SPB) on copper, revealing that SPB not only enhances the impermeability and chemical resistance of bentonite but also significantly improves heavy metal adsorption capacity.
JOURNAL OF TESTING AND EVALUATION
(2021)
Article
Materials Science, Paper & Wood
Sarita Yadav, Aruna Yadav, Nisha Bagotia, Ashok K. Sharma, Surender Kumar
Summary: This study synthesized a green bio-composite adsorbent based on Pennisetum glaucum raw material (RM) containing 0.5% functionalized carbon nanotube (0.5% CNT + RM). The morphology and physicochemical properties of the bio-composite were investigated using various techniques. The adsorption efficiency of the prepared biocomposite adsorbents was evaluated for the removal of cationic dyes from single and multi-component systems. The results showed that the adsorbent had excellent adsorption capacity and regeneration capability, making it suitable for practical applications.
Article
Engineering, Chemical
Hajar Merrikhpour, Sara Mobarakpour, Seyedeh Bahareh Azimi
Summary: This study investigates the adsorption capacity of modified bentonite for heavy metal ions in water. The results show that SDS modified bentonite can enhance the adsorption capacity of the natural adsorbents, with the best performance observed at 40 mM.
DESALINATION AND WATER TREATMENT
(2022)
Article
Polymer Science
Joon Hyuk Lee, Eunkyung Jeon, Jung-kun Song, Yujin Son, Jaeho Choi, Seongjun Khim, Minju Kim, Ki-Ho Nam
Summary: The adsorption characteristics of toluene and benzene onto activated carbons produced from coal and coconut shells were investigated in this study. The coal-based activated carbon (AC) showed a higher adsorption capacity compared to the coconut shell-based activated carbon (CAC). The adsorption process was found to be spontaneous, favorable, and the regeneration efficiency was secured more than 95%.
Article
Green & Sustainable Science & Technology
Mave Koko Motandi, Zhaoran Zhang, Stelgen Inkoua, Liangguo Yan
Summary: Layered double hydroxides (LDHs) are well-known for their tunable structure and superior performance, and have been widely used in environmental remediation. Zr-LDH and Zr-LDO show efficient and rapid reduction of phosphate concentration through adsorption behavior in water.
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
(2022)
Article
Engineering, Environmental
Xuguang Li, Yanxiu Guo, Liangguo Yan, Tao Yan, Wen Song, Rui Feng, Yuwei Zhao
Summary: Ball milling of MoS2 optimizes its surface properties, increasing surface area and S-vacancies to expose more Mo (IV) sites, resulting in enhanced catalytic efficiency for PMS activation. The process also improves adsorption capacity and accelerates the generation of reactive species, leading to more efficient degradation of contaminants like TC in advanced oxidation processes.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Jing Li, Haiqin Yu, Tao Yan, Meng Sun, Xuguang Li, Wen Song, Liangguo Yan
Summary: In this study, Fe3O4/LDO/BiOBr composites were synthesized by hydrothermal self-assembly and calcination treatment. These composites showed excellent photoreduction activity towards Cr(VI) due to the construction of electron transfer path and efficient separation of photogenerated carriers.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Dan Yang, Yan Chen, Jing Li, Yanfei Li, Wen Song, Xuguang Li, Liangguo Yan
Summary: CAL and CAL-PPy were prepared to efficiently remove high concentrations of Cr(VI) wastewater, with CAL-PPy showing improved adsorption performance due to increased specific surface area. The mechanisms involved electrostatic attraction, surface complexation, anion exchange, and reduction to low-toxicity Cr(III).
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Junhua Sun, Xiuxian Zhao, Guoxin Sun, Heng Zhao, Liangguo Yan, Xuchuan Jiang, Yu Cui
Summary: A novel acidic adsorbent, beta-cyclodextrin phosphate polymer (beta-CDPP), was synthesized by one-pot method in this study, showing high efficiency in removing Pb(ii) ions from acidic wastewater. The beta-CDPP exhibits a high maximum Pb(ii) adsorption capacity and good reusability, while also showing good adsorption performance for other heavy metals.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Engineering, Chemical
Xinyue Su, Yanxiu Guo, Liangguo Yan, Qiaodi Wang, Wei Zhang, Xuguang Li, Wen Song, Yanfei Li, Guicai Liu
Summary: MoS2 nanosheets were vertically aligned on biochar calcined from Chinese cabbage and used to activate peroxymonosulfate, enhancing tetracycline removal in water solutions. The composites exhibited excellent catalytic efficiencies through synergistic radical and non-radical processes, showing better catalytic abilities than pristine biochar. This indicates that biochar/MoS2 materials are promising catalysts in SO4 center dot- based advanced oxidation processes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Tao Yan, Haolin Ding, Rui Feng, Ruifang Yuan, Yanxia Zhao, Meng Sun, Liangguo Yan, Qin Wei
Summary: A dual-mode self-powered aptasensing platform was constructed for Microcystin-LR (MC-LR) detection using photoelectrochemical (PEC) and photofuel cell (PFC). The platform utilized an IO-ISTC composite as a photoanode matrix, resulting in higher output power and photocurrent response. The platform achieved highly sensitive and selective detection through aptamer-based recognition of MC-LR molecules. The proposed platform showed good specificity, reproducibility, and stability.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Shuang Zhang, Yan Chen, Jing Li, Yanfei Li, Wen Song, Xuguang Li, Liangguo Yan, Haiqin Yu
Summary: CaAl-LDH fabricated by a simple hydrothermal method can efficiently capture Cu(II) and Cd(II) ions in water, showing good adsorption performance and rapid removal rate.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Environmental Sciences
Chuanfu Zhao, Yibing Wang, Shuangyu Meng, Wenhao Zhang, Xinwen Zhang, Liangguo Yan, Qin Wei, Dong Wei
Summary: This study established a microbial fuel cell (MFC) assembled with poly(butanediol succinate) (PBS) in an aerobic granular sludge (AGS) bioreactor for simultaneous nitrogen removal and electricity generation. The results showed that the AGS-MFC group achieved significantly improved total inorganic nitrogen (TIN) and COD removal efficiencies, as well as increased average output voltage and maximum power density in the MFC module after 100 days of operation. High-throughput sequencing analysis revealed that Thauera-related denitrifying bacteria had the highest relative abundances in both bioreactors, while the relative abundance of Nitrosomonas-related ammonia oxidizing bacteria (AOB) was enriched in the AGS-MFC group.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Chemistry, Physical
Wen Song, Xue Zhang, Lu Zhang, Zihan Yu, Xuguang Li, Yanfei Li, Yu Cui, Yanxia Zhao, Liangguo Yan
Summary: In this study, the adsorption mechanisms of polyethylene glycol modified MgAl-LDH for Cu(II), Pb(II), and Cd(II) were qualitatively and quantitatively investigated. The results showed that the precipitation mechanism was the main contributor, accounting for 44.20%-72.12%. The contributions of complexation, isomorphous substitution, and electrostatic attraction to the total adsorption amounts were 12.43%-37.89%, 6.35%-18.81%, and <3.5%, respectively. After modification, the contribution of precipitation increased and complexation decreased.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Dan Yang, Xuguang Li, Yanfei Li, Wen Song, Tao Yan, Yu Cui, Liangguo Yan
Summary: NiFe-LDH and NiFe/MoS2 were synthesized via a hydrothermal method to decontaminate wastewater contaminated with high concentrations of Cr(VI). The addition of MoS2 improved the conductivity, capacitance reversibility, charge efficiency, coulombic efficiency, and stability of NiFe/MoS2. The CDI process using NiFe/MoS2 and activated carbon as the anode and cathode achieved a deionization capacity of 49.71 mg/g and a removal ratio of 99.42% for Cr(VI) at 1.2 V and 20 mL/min. The Langmuir model accurately described the isothermal data, with a theoretical maximum deionization capacity of NiFe/MoS2 for Cr(VI) being 106.2 mg/g. The interaction mechanisms included electrostatic attraction, surface complexation, and reduction. These findings suggest the practical application potential of NiFe/MoS2 in Cr(VI) wastewater treatment.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Chemical
Le Wang, Xiaoyu Zheng, Liangguo Yan, Wen Song, Yanfei Li, Bingqian Wu, Xuguang Li
Summary: The study focuses on the use of Fenton-like reactions for environmental pollution control. MoS2 samples with different 1T/2H phase ratios and S vacancies were fabricated, resulting in almost 100% removal of oxytetracycline (OTC) in the 1-MoS2/peroxymonosulfate (PMS) system within 60 minutes. The dominance of the 1T/2H phase ratio in catalytic performance and the activation of PMS by 1-MoS2 were confirmed.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Rongshuai Wang, Haoqi Wang, Chongying Zhong, Qing Liu, Rui Feng, Yanxia Zhao, Meng Sun, Liangguo Yan, Tao Yan
Summary: A homemade flow-through electroactive filter was constructed to efficiently remove oflox-acin (OFL) from wastewater using Copper oxide nanowires electrode. The electrode showed improved activation and utilization efficiency of peroxymonosulfate (PMS), leading to significant catalytic removal reactions. The optimized pH, PMS concentration, and applied voltage achieved an OFL removal efficiency of 80% in a single-pass mode. The developed filter exhibited less energy and PMS consumption compared to previous research and provided new insights into cost-effective remediation strategies for anti-biotic wastewater.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Lu Zhang, Fanjun Meng, Wen Song, Xiaohua Ren, Jinxin Wang, Xiao Cai, Xuguang Li, Yanfei Li, Liangguo Yan
Summary: In this study, a wheat straw biosorbent was prepared using quaternization reaction and ion-imprinting technology, which showed selective removal of phosphate in the presence of high-strength nitrate and good regeneration performance. This biosorbent has a wide range of application prospects in water treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Jing Li, Liangguo Yan, Xuguang Li, Wen Song, Yanfei Li
Summary: In this study, polyvinyl alcohol/biochar hydrogels with different water/PVA ratio were fabricated as an effective solar-driven vapor generator. The hydrogels exhibited an openly porous structure, a solar absorber on the biochar interface, and thermal conduction, enabling fast and efficient vapor generation. The PBHs also showed excellent performance in salt rejection and wastewater purification.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
