Article
Environmental Sciences
Shuo Liu
Summary: In this study, ion-imprinted polymer-grafted modified nanocellulose was used as an adsorbent for Pb(II) and Hg(II) in wastewater. The results showed that Pb(II)-MIP-NC and Hg(II)-MIP-NC effectively adsorbed Pb(II) and Hg(II), respectively, with adsorption capacities of 27.55 mg/g and 161.31.
Article
Materials Science, Multidisciplinary
Yang Han, Yangsai Lyu, Ningning Xing, Xiaolei Zhang, Kaiyuan Hu, Hui Luo, Dickon H. L. Ng, Jia Li
Summary: In this study, a facile biomass route was developed to synthesize ion-imprinted MnO2/CoFe2O4 Janus micromotors. These micromotors, combining autonomous motion, ion-imprinting technique, and magnetic recovery, exhibited highly sensitive and selective adsorption and quick removal of lead ions from water. The Janus micromotor shows great potential in environmental remediation.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Analytical
Hanrong Wu, Guo Lin, Chenchen Liu, Shiyu Chu, Chao Mo, Xiaobo Liu
Summary: This article provides a review of the development process, classification, synthesis principles, systems, and polymerization methods of molecularly imprinted polymers (MIPs). The adsorption mechanism of copper, mercury, chromium, silver, and lead in MIPs technique is also studied. Suggestions and prospects for the future development of MIPs are proposed.
TRENDS IN ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2022)
Article
Environmental Sciences
Sema Bagdat, Feyzullah Tokay, Sahin Demirci, Selehattin Yilmaz, Nurettin Sahiner
Summary: Super porous polyethyleneimine (PEI) cryogels were used as adsorbents to remove Cd(II), Co(II), Cr(III), Ni(II), Pb(II), and Zn(II) from contaminated waters. The optimum pH value and contact time for removing the analytes were determined as 4.0 and 90 min, respectively. The adsorption capacities of the sorbent ranged from 19.88 to 24.39 mg/g for target metal ion solutions with a concentration of 50 mg/L. The adsorption kinetics followed the pseudo-second-order model, and the adsorption isotherms followed the Langmuir isotherm model. The PEI cryogels showed selectivity and tolerance to high concentrations of different ions and successfully removed the target analytes from industrial wastewater samples with removal rates ranging from 80.35% to 99.89%.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Chemistry, Physical
Melek Gucoglu, Nuray Satiroglu
Summary: This study utilized chemically functionalized silica to remove Pb(II), Cu(II), Cd(II), Ni(II), and Co(II) ions from water samples. The adsorbent was prepared by immobilizing a newly synthesized ligand on the silica surface, and its adsorption performance was investigated. The results showed that the adsorbent had high selectivity for Cu(II) and Pb(II) ions in synthetic wastewater.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Green & Sustainable Science & Technology
Xiang Liu, Jiali Tang, Likang Fu, Hao Wang, Shuai Wang, Chao Xiong, Shixing Wang, Libo Zhang
Summary: In order to efficiently and selectively remove lead ions from industrial wastewater, researchers synthesized a novel Zr-based metal-organic framework adsorbent (UiO-DCCA) with a novel N,N'-(4carboxylic-pyridine-2,6-diyl) dipicolinimidamide ligand for the efficient and selective capture of Pb(II). The selective adsorption experiment showed unique affinity of UiO-DCCA for Pb(II), with a maximum adsorption capacity of 353.29 mg/g. This study demonstrates the value of new self-designed organic ligands in metal-organic framework materials for selectively capturing heavy metal ions.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Polymer Science
Meiyuan Lv, Yuhan Du, Tingting Zhang, Xueyu Du, Xueqiong Yin
Summary: A cassava starch-based Pb(II)-imprinted thermo-responsive hydrogel was successfully prepared, which exhibited superior adsorption performance and selective adsorption ability. The regenerated material maintained a high adsorption capacity.
Article
Engineering, Environmental
Jue Wang, Xi Yang, Dongdong Yan, Junyan Wu, Yiguo He, Yadong Zhang
Summary: In this study, chloroacetylated polystyrene resins were used as support, polyethyleneimine as functional monomer, epichlorohydrin as cross-linker, and Cu(II) as template to prepare ion-imprinted resins (PS-PEI@SIP) and nonimprinted resins (PS-PEI@NIP). The results showed that PS-PEI@SIP had high adsorption capacity and selectivity for Cu(II) ions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Pouran Rahnama Haratbar, Ahad Ghaemi, Masoud Nasiri
Summary: The HCP-CN adsorbent showed excellent efficiency and speed in removing lead ions from wastewater, with characteristics of exothermic and spontaneous adsorption process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Huai-Yuan Niu, Xueting Li, Jishan Li
Summary: In this study, dithiocarbamate functionalized activated carbon (DTC-AC) was synthesized and its adsorption performance for heavy metals Pb(II), Cu(II), and Cd(II) was investigated. The results showed that DTC-AC had higher heavy metal adsorption capacity, and pH played an important role in heavy metal removal. The adsorption equilibrium was reached within 20 minutes. The Langmuir model best described the adsorption performance of DTC-AC, with a maximum single metal uptake of 203.36 mg g(-1) for Pb(II). Thermodynamic parameters indicated that the adsorption process of heavy metals onto DTC-AC was spontaneous and endothermic. This study demonstrated the potential of DTC-AC in remediating heavy metal pollution.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Engineering, Chemical
Fang Li, Zhengwen Lin, Huanqing Zhai, Xinyu Liu
Summary: Graphene oxide was synthesized using the modified Hummers method and used as an electrode for the removal of Pb(II) ions. The experimental results showed that the graphene oxide electrode had high adsorption efficiency and good regeneration performance.
DESALINATION AND WATER TREATMENT
(2022)
Review
Chemistry, Inorganic & Nuclear
Barbara Barszcz, Joanna Masternak, Mateusz Kowalik
Summary: Studies on coordination chemistry in the past 20 years have sparked increased interest in coordination polymers, which exhibit diverse structures and potential applications. This review mainly focuses on three main topics related to Pb(II) and Bi(III) polymers, while also exploring the impact of different ligand structures based on comprehensive literature review.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Environmental Sciences
Xiaojun Jin, Renrong Liu, Huifang Wang, Li Han, Muqing Qiu, Baowei Hu
Summary: The use of biochar supported with nanoscale Fe3O4 particles from peanut shell (PS-Fe3O4) shows promising results for the removal of Pb(II) ions from aqueous solutions. The adsorption process is spontaneous and endothermic, with a maximum adsorption capacity of 188.68 mg/g. The mechanisms of adsorption include Fe-O coordination, co-precipitation, complexation reaction, and ion exchange.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Multidisciplinary Sciences
Dipesh Chandra, Md. Tamzid Hossain Molla, Md. Abul Bashar, Md. Suman Islam, Md. Shameem Ahsan
Summary: The physical and surface properties of sodium tripolyphosphate (TPP) and vanillin (V)-modified chitosan-based magnetic nano-sorbents (TPP-CMN and V-CMN) were characterized. FE-SEM and XRD analysis showed the average size of Fe3O4 magnetic nanoparticles between 6.50 and 17.61 nm. The TPP-CMN and V-CMN nano-sorbents exhibited high sorption capacity for heavy metal ions. The synthesis of these nano-sorbents and their efficient and cost-effective performance in wastewater treatment make them highly valuable. Rating: 8/10.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Environmental
Silindokuhle Jakavula, N. Raphael Biata, K. Mogolodi Dimpe, Vusumzi E. Pakade, Philiswa N. Nomngongo
Summary: This study successfully employed the MIIP strategy for simultaneous extraction and enrichment of Sb(III), Cd(II), Pb(II), and Te(IV) ions from drinking water sources, using UA-DSPE/ICP-OES for analysis and detection. The method showed good enhancement factors, low limits of detection and quantification under optimized conditions, with robust precision and accuracy validated through spiked recovery experiments.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Min Chen, Can Wang, Xin Zhao, Yingcai Wang, Weiqiu Zhang, Zefang Chen, Xiaoyang Meng, Jinming Luo, John Crittenden
ENVIRONMENT INTERNATIONAL
(2020)
Review
Engineering, Environmental
Jinming Luo, Deyou Yu, Kiril D. Hristovski, Kaixing Fu, Yanwen Shen, Paul Westerhoff, John C. Crittenden
Summary: Nanomaterial adsorbents show promise in removing toxic metals from water, but face challenges due to limited understanding of adsorption mechanisms and scaling up evaluation. Advanced tools and chemical principles can help identify mechanisms, while engineering issues must be addressed for successful implementation of NAs. Further research on microstructure properties and NA recovery from treated water is prioritized for development of efficient NAs.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Longlong Wang, Ke Zhang, Jinming Luo, Jing-Yuan Ma, Wenxin Ji, Qinyuan Hong, Haomiao Xu, Wenjun Huang, Naiqiang Yan, Zan Qu
Summary: The study focused on the adsorption performance of well facet-controlled I-Cu2WS4 single crystals as a sorbent for gaseous elemental mercury, revealing that crystals with predominant exposure of {101} facets exhibited promising adsorption efficiency and the surface relative stability of different facets could be affected by the change in surface atom configuration.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Kaixing Fu, Xia Liu, Chunyu Lv, Jinming Luo, Mingxing Sun, Shenglian Luo, John C. Crittenden
Summary: This study developed a thiol-laced metal-organic framework (MOF)-based sponge monolith (TLMSM) as a point-of-use (POU) device for efficient removal of mercury (Hg). The TLMSM exhibited high adsorption capacity, fast kinetics, broad pH range, and excellent regeneration capability. It performed well in various real water matrices and showed great potential as POU devices. The adsorption complexes formed during the process were systematically investigated, revealing the working mechanism of the material.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Qian Hu, Licong Xu, Kaixing Fu, Feichao Zhu, Taoyu Yang, Tao Yang, Jinming Luo, Minghua Wu, Deyou Yu
Summary: This study introduces a facile and effective approach to fabricate MOF-based melamine foams (MFs) with ultrahigh loading stability and operation stability, easy separation, and high-efficient performance for versatile robust applications.
Editorial Material
Engineering, Environmental
Jinming Luo, Raina M. Maier, Deyou Yu, Baicang Liu, Nanwen Zhu, Gary L. Amy, John C. Crittenden
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Agricultural Engineering
Qingshan Lin, Xinlei Dong, Jinming Luo, Qian Zeng, Jie Ma, Zongping Wang, Guanghao Chen, Gang Guo
Summary: This study investigated an alternative electrochemical pretreatment approach that facilitated acidogenic fermentation of waste activated sludge and food waste, resulting in enhanced production of volatile fatty acids.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Kaixing Fu, Youqin Zhang, Hengzhi Liu, Chunyu Lv, Jing Guo, Jinming Luo, Kai Yin, Shenglian Luo
Summary: This study synthesized granular Zr-based MOF-polymer composite beads and applied them for efficient removal of lead ions. The prepared composite beads exhibited high selectivity and excellent reusability for lead ions, as well as good anti-interference ability under various pH ranges and in the presence of dissolved organic matters.
Article
Engineering, Environmental
Zhihang Yuan, Qiujie Huang, Zhuoqin Wang, Hui Wang, Jinming Luo, Nanwen Zhu, Xinde Cao, Ziyang Lou
Summary: In this study, the researchers investigated the temperature-dependent variations in the char-volatile products derived from sludge and microplastics under different pyrolysis scenarios. They found that the abundance of EPFRs increased exponentially in the 350-450 degrees C range. The formation of EPFRs was found to be temperature-dependent, and microplastics with conjugated aromatic ring structures were more likely to form EPFRs.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Review
Engineering, Environmental
Jinwen Hu, Ling Zhao, Jinming Luo, Huabo Gong, Nanwen Zhu
Summary: Conversion of sewage sludge to biochar for contaminants removal achieves the goals of solid waste reuse and pollution elimination. However, the understanding of sludge-derived biochar (SDB) for wastewater treatment is still limited. This paper reviews recent studies on the use of (modified) SDB as adsorbents and catalysts for the removal of contaminants from water. It summarizes the effects of modification on the adsorption and catalytic performance of SDB and discusses the challenges and future directions in using SDB for wastewater treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Zhiyuan Qiu, Kaixing Fu, Deyou Yu, Jinming Luo, Jingge Shang, Shenglian Luo, John C. Crittenden
Summary: In this study, a new protocol was developed to transform Chinese medicine residues into a high-performance adsorbent for heavy metal removal. The adsorbent demonstrated excellent adsorption capacity, fast kinetics, wide pH range, and good regeneration capability.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Hongbiao Wen, Zezhen Pan, Xingxing Wang, Kejian Li, Qihuang Wang, Jinming Luo, Hongbo Fu, Liwu Zhang, Zimeng Wang
Summary: Despite extensive research on semiconductor photocatalysis, the fundamental aquatic chemistry of these new materials and their environmental implications are poorly understood. In this study, the solubility of BiVO4 and its non-stoichiometric dissolution in different pH ranges were investigated. The solubility and stability of BiVO4 were found to be pH-dependent, with the lowest solubility and highest stability near pH 5. Illumination significantly enhanced the dissolution of BiVO4. Adsorption of dissolved bismuth by BiVO4 solids was identified as the main reason for the non-stoichiometric dissolution. These findings highlight the importance of considering the dissolution of photocatalysts and provide a method to evaluate the environmental stability and risks of other semiconductor materials.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Kaixing Fu, Jia Sun, Chunyu Lv, Deyou Yu, Jinming Luo
Summary: This study proposed a facile, environmentally benign, and cost-effective method to construct uniformly sized granular metal-organic framework beads for efficient and selective mercury removal. The as-prepared beads demonstrated excellent adsorption capacity, fast kinetics, universal pH range, high selectivity, and satisfactory anti-interfering ability. They also maintained good mechanical integrity and water resistance.
ACS ES&T ENGINEERING
(2022)
Article
Engineering, Environmental
Zhihang Yuan, Jinming Luo, Efomah Andrew Ndudi, Wenchao Ma, Nanwen Zhu, Ziyang Lou
Summary: This study focused on the pyrolysis of sludge and used in-situ infrared/mass spectral probes coupled with signal amplification techniques to analyze the reactions and dynamic variations during pyrolysis. By comparing different samples, the three-stage pyrolysis of sludge and its reaction mechanisms were identified. The generation of reactive intermediates and collision frequency between reactants played important roles in the pyrolysis process, and the order of volatile generation was consistent with the variations of pyrolysis behaviors, reaction models, and surface characteristics of chars.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Review
Engineering, Environmental
Jinming Luo, Kaixing Fu, Deyou Yu, Kiril D. Hristovski, Paul Westerhoff, John C. Crittenden
Summary: This critical review discusses the synthesis methods of nanomaterial adsorbents (NAs) and assesses their scalability for full-scale applications. It also examines the impact of NAs structures on metal adsorption and emphasizes the need to prioritize research to balance production costs and feasibility of desired properties at commercial scale quantities. Furthermore, it suggests the establishment of an evaluation protocol for NAs to consider both adsorption capacity and mass transfer kinetics during material discovery stage and long-term testing in real applications.
ACS ES&T ENGINEERING
(2021)