Article
Biochemistry & Molecular Biology
Jing Ye, Yacen Mao, Liang Meng, Junjie Li, Xilin Li, Lishan Xiao, Ying Zhang, Fenghua Wang, Huan Deng
Summary: In this study, a novel composite (nZVI@PBC) consisting of nanoscale zero-valent iron supported by polycaprolactone-modified biochar was synthesized to address the pollution problem of 1,1,1-trichloroethane (1,1,1-TCA) in groundwater. The composite coupled with Shewanella putrefaciens CN32 exhibited excellent removal performance for 1,1,1-TCA, with a removal rate of 82.98% within 360 h. The major improvement mechanisms include the nZVI-mediated chemical reductive dechlorination and the CN32-mediated microbial dissimilatory iron reduction.
Article
Engineering, Chemical
Xianke Sun, Yanxin Qin, Wen Zhou
Summary: This paper studied the degradation of amoxicillin by ultrasound-zero valent iron activated sodium persulfate and optimized the best degradation conditions. The research found that ultrasonic power, sulfate concentration, and zero-valent iron dosage have significant impacts on the removal efficiency of amoxicillin.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Minda Yu, Xuhui Mao, Xiaosong He, Mingxia Zheng, Xu Zhang, Jing Su, Beidou Xi
Summary: This study demonstrates the enhancement of peroxide activation efficiency and organic contaminant degradation by mechanically silicified microscale zero-valent iron (mZVI). The silicification process improves the generation of reactive intermediates, resulting in a significant increase in sulfamethazine removal rate. Continuous generation of ferrous ions in the Si-mZVI(bm)/PDS system after silicification contributes to the excellent performance of peroxide activation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Environmental
Wenjuan Shen, Zhan Liu, Fengjiao Quan, Xu Zhang, Xing Peng, Xiaobing Wang, Wenqing Wang, Lan Huang, Shunxi Zhang, Jianfen Li, Yunjun Mei
Summary: This study modified microscale zero valent iron (mZVI) with hydrophilic sodium carboxymethyl cellulose (CMC) using a mechanical ball milling method, referred to as CMC-mZVI, and compared its phosphate removal performance with that of mZVI. The results showed that the crystalline structure of mZVI did not change significantly after ball milling, and CMC could be adsorbed on the surface of mZVI. The phosphate removal percentage of CMC-mZVI was 99.99% within 360 minutes, much higher than that of mZVI (75.23%). This study provided an environmentally friendly and effective method to improve the reactivity of commercial mZVI powder and contribute to the wide application of mZVI technology in environmental remediation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Yujun Cheng, Haoran Dong, Tianwei Hao
Summary: In this study, calcium carbonate coated nanoscale zero-valent iron (C-nZVI) was synthesized for Cr(VI) removal. The water chemistry had an influence on C-nZVI reactivity, with NO3 showing a positive effect on C-nZVI contrary to its influence on nZVI.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Hao Cui, Yu Tian, Jun Zhang, Shanshan Ma, Lipin Li, Wei Zuo, Lei Zhang, Tong Wang
Summary: The study proposes a novel two-stage US-ZVI/PS process that can reduce ZVI usage and energy consumption significantly compared to traditional methods. By controlling the release of Fe2+ within a reasonable range, the efficiency of sulfadiazine removal is greatly enhanced.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Tong Wei, Xin-Sheng Zhu, Qi-Xue Wang, Ke-Ke Xu, Fu-Kai Tang, Ming-Zhu Zhang, Shi-Wen Lv, Feng Ge
Summary: In this study, zero valent iron (ZVI) derived from Fe-based prussian blue analogues was successfully synthesized and exhibited excellent charge transfer properties. The ZVI-2 catalyst effectively activated peroxymonosulfate (PMS), leading to rapid degradation of phenol with a removal efficiency of 94.9% within 24 minutes. The ZVI-2/PMS oxidation system showed good stability and strong anti-interference capability, making it a promising candidate for wastewater treatment.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Xiang Wang, Rufeng Deng, Wenbo Shen, Jianbo Huang, Qun Li, Yuanchao Zhao, Jinzhong Wan, Yan Zhou, Tao Long, Shengtian Zhang
Summary: The study demonstrated that the nZVI/BC activated PS system could achieve over 90% removal of three NCB isomers at a low initial concentration. The combination of nZVI/BC composite and PS showed superior performance to using PS alone, with optimal treatment conditions being a Fe:BC ratio of 1:1, Fe amount of 6 mmol/L, and a mole ratio of Fe to persulfate of 1:1.
FRONTIERS IN CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Liang Dai, Kai Meng, Weifan Zhao, Tao Han, Zhenle Lei, Gui Ma, Xia Tian, Jun Ren
Summary: In this study, attapulgite-supported nano zero-valent iron (nZVI@ATP) was synthesized and used for Pb2+ remediation in aqueous solution. The adsorption performance of nZVI@ATP for Pb2+ was improved, and the mechanism included reduction, precipitation, and complex formation.
Article
Engineering, Environmental
Haitao Wang, Yue Wang, Zhenglong Liu, Shuangjiang Luo, Valentin Romanovski, Xianqiang Huang, Bozena Czech, Hongwen Sun, Tielong Li
Summary: This study reports the rational construction of mZVI/graphene composite (mZVI/G) through a simple and environmental-friendly mechanochemical method, achieving efficient removal of Cr(VI) in wastewater treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Yufeng Du, Min Dai, Iffat Naz, Xiangying Hao, Xixi Wei, Rong Rong, Changsheng Peng, Imran Ali
Summary: In the present research, zero-valent iron (ZVI) synthesized by carbothermal reduction method was studied for its formation mechanism and application as a catalyst for ciprofloxacin degradation. The experimental parameters including pH, Fe@BC dosage, PS concentration, and temperature on ciprofloxacin degradation were thoroughly investigated. Results showed that Fe@BC has excellent catalytic performance, removing 90.78% of ciprofloxacin within 120 min. Free radical quenching experiments confirmed the reaction mainly occurs on the Fe@BC surface.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Jieling Ren, Zishen Lin, Yingying Yong, Chunli Zheng, Aibin Zhu, Chi He, Hua Pan
Summary: In this study, amorphous zero-valent iron (AZVI) was synthesized and loaded on kaolinite to prepare a composite material (KAZVI) for enhancing the removal of cadmium (II) (Cd(II)) in water. The results showed that K-AZVI had a larger particle size and better electron transfer ability compared to the crystalline composite (K-ZVI). The adsorption process of K-AZVI for Cd(II) conformed to the pseudo-second-order kinetic model, and it showed great potential for the remediation of Cd(II) in water.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Environmental Sciences
Xingya Wei, Changjun Li, Naiyun Gao
Summary: This study demonstrated that sulfate radical produced from persulfate by zero-valent iron can effectively degrade acyclovir. The optimal degradation conditions were identified and the main degradation pathways and intermediates were proposed. Although the mineralization rate was not high, ZVI/PS oxidation was proven to be a viable treatment method for acyclovir-induced water pollution.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Junxue Song, Wei Fang, Jing Lai, Bingdi Cao, Tao Zhang, Zhenzhen Xu
Summary: This study investigated the efficiency of fecal sludge conditioning using peroxydisulfate (PDS) activated by zero-valent iron (ZVI) . The ZVI/PDS coupling greatly improved the dewaterability of fecal sludge and the quality of the supernatant. The combination of 0.15 g/g TS ZVI and 0.2 g/g TS PDS reduced the capillary suction time (CST) and supernatant turbidity of fecal sludge up to 97% and 73% respectively in 10 min.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Bahareh Montazeri, Olga Koba-Ucun, Idil Arslan-Alaton, Tugba Olmez-Hanci
Summary: The study compared the degradation of iprodione (IPR) by UV-C light, zero-valent iron (ZVI), and zero-valent aluminum (ZVA) activated persulfate (PS) oxidation processes in distilled water (DW) and simulated urban wastewater (SWW). The results showed that ZVI/PS treatment was the most effective oxidation process in SWW, with the treatment performance being strongly influenced by the constituents of SWW, and UV-C/PS treatment being the most sensitive to it.
Article
Engineering, Environmental
Jiahao Zhang, Shengyu Bai, Zhongqi Li, Guanyao Gu, Hucheng Wang, Lai Wei, Xun Sun, Fuzhen Xuan, Xuhong Guo, Yiming Wang
Summary: In this study, we demonstrate a reversible phase transition of poly(N-isopropylacrylamide) (PNIPAm) in response to light instead of temperature through a simple signal transformation strategy. By using a photoacid and PNIPAm-based copolymers, the lower critical solution temperature (LCST) of the copolymers can be reversibly changed upon switching on/off light, resulting in a fast (<0.5 min) and reversible phase transition without changing the ambient temperature. This concept enables the fabrication of light-controlled dynamic patterns and conceptually smart soft actuators composed of the copolymers, offering potential for the development of new non-contact smart objects with adaptive responsiveness.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Yinglin Zhang, Long Chen, Bo Yan, Fuping Zhang, Yulin Shi, Xuhong Guo
Summary: The utilization of hazardous textile sludge as a precursor for energy production has significant practical implications for sustainable economic and environmental development. In this study, a novel Cu8S5/NSC catalyst with abundant mass transfer channel was successfully designed through direct pyrolysis of textile sludge waste. The catalyst exhibited excellent electrocatalytic activity and stability, outperforming the benchmark Pt/C||RuO2 in water splitting for energy production.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Manufacturing
Kedong Zhang, Zhihao Li, Shanshan Wang, Peng Wang, Yuping Zhang, Xuhong Guo
Summary: In this study, a new nanofluid (Fe3O4@CNTs nanofluid) was prepared and its coupling effect with micro-texture on the cutting performance of TiC ceramic tools under the action of a magnetic field was revealed. The results showed that TTC + FC-0.5 exhibited lower cutting forces and surface roughness compared to TC + F-0.5, with further improvements at higher magnetic field strengths.
JOURNAL OF MANUFACTURING PROCESSES
(2023)
Article
Materials Science, Multidisciplinary
Jiaxiong Li, Changhao Yan, Hucheng Wang, Erfu Lu, Yiming Wang, Xuhong Guo, Jie Wang
Summary: Chemically fueled smart supramolecular gels with dynamic gel-sol-gel transition behavior driven by the consumption of biocompatible cyclodextrin (CD) were developed. The gel-sol-gel transition process is highly dynamic and tunable, and the gel state can be maintained after the depletion of the fuel. This research may contribute to the development of biocompatible non-equilibrium materials for high-tech applications, especially in the field of biomedicine.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Polymer Science
Yuanyuan Xu, Tiantian Ren, Jianning Wu, Guihua Meng, Shengchao Yang, Lin Cui, Zhiyong Liu, Xuhong Guo
Summary: Ultrasound-assisted deep eutectic solvent (DES) pretreatment was used to treat cotton straw to separate hemicellulose and lignin while retaining most of the cellulose. DESs were prepared with different molar ratios using choline chloride as the hydrogen bond acceptor and formic acid as the hydrogen bond donor. Changing the ultrasonic frequency and DESs synergistic extraction of lignin. The study provides a feasible method for the separation of lignocellulose.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Chemical
Liheng Dai, Zhaodi Xiong, Weiyi Xu, Kai Qu, Yixing Wang, Shuyun Gu, Hongyan Cao, Ying Yu, Linfeng Lei, Siyao Li, Kang Huang, Xuhong Guo, Zhi Xu
Summary: Researchers construct high-density hydrophilic microregions in graphene oxide (GO) membranes by introducing sodium polystyrene sulfonate (PSSNa) with abundant ionized sulfonate groups, providing a good hydrophilic chemical microenvironment and facilitating fast water-selective permeation. The self-assembly between PSSNa and GO nanosheets leads to a well-stacked lamina structure, achieving superior separation of water-butanol mixture through size sieving effect. The prepared PSSNa/GO membrane on polyethersulfone (PES) substrate exhibits excellent separation performance, representing state-of-the-art selective separation membranes.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Liang Sun, Zhinan Fu, Enguang Ma, Li Li, Zhiyong Liu, Xuhong Guo
Summary: We report on the design and synthesis of hollow silica-supported gold nanocatalysts via an in-situ colloidal polyelectrolyte template strategy. The resulting hollow SNPs@AuNPs exhibited superior catalytic activity and reusability for the reduction of p-nitrophenol by sodium borohydride in aqueous solution. This synthetic strategy can potentially be extended to fabricate multifunctional nanomaterials with diverse compositions for applications in catalysis, energy, and other important domains.
Article
Materials Science, Multidisciplinary
Yan Qin, Weihua Su, Guihua Meng, Jianning Wu, Lin Cui, Shengchao Yang, Zhiyong Liu, Xuhong Guo
Summary: An intelligent responsive pesticide delivery system with ROS responsive star polymer micellar slow-release system shows great potential in improving the utilization rate of pesticides in agriculture. The system successfully loaded MBC and demonstrated a 1.64-fold increase in release amount with the presence of H2O2. It also exhibited a high inhibitory rate against R. solani. This study highlights the importance of designing pesticide vectors according to the target environment for crop protection, improved pesticide utilization, and environmental preservation.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhinan Fu, Enguang Ma, Zheng Yang, Li Li, Xuhong Guo
Summary: This study reports a novel continuous-flow nanoprecipitation strategy for synthesizing hollow mesoporous organosilica nanoparticles (MONPs) with highly uniform and tailored properties. The synthesized hollow nanoparticles possess a large surface area, narrow size distribution, large hollow cavity, and thin shell, and exhibit degradability through the incorporation of organic moieties. Furthermore, the potential of these hollow nanoparticles as drug carriers is demonstrated.
Article
Nanoscience & Nanotechnology
Weihua Su, Yan Qin, Jianning Wu, Guihua Meng, Shengchao Yang, Lin Cui, Zhiyong Liu, Xuhong Guo
Summary: In this study, ROS-responsive pesticide release carrier materials were designed and prepared for solving bacterial infections in plants. The polymer, consisting of β-cyclodextrin (β-CD) and ε-caprolactone (ε-CL), showed ROS response characteristics and released the pesticide (carbendazim) in a controlled manner. The inhibitory effect on Rhizoctonia S. was significant, and the polymer demonstrated good storage stability for at least 14 days. This ROS-responsive polymer carrier holds great potential as a carrier for antimicrobial pesticides.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Shengyu Bai, Hucheng Wang, Guanyao Gu, Jiahao Zhang, Lai Wei, Yuliang Gao, Zhongqi Li, Xuhong Guo, Yiming Wang
Summary: We demonstrate the transient assembly of macroscopically structured supramolecular hydrogels by using shaped chemical fuels. The shaped fuels are loaded in solid gels with defined shapes, which generate gradients and drive the assembly of hydrogels. This strategy can be used for dynamic information encryption.
ACS MATERIALS LETTERS
(2023)
Article
Chemistry, Physical
Zhinan Fu, Lizhen Wang, Weijun Zhang, Xuan Tang, Wenxin Xia, Jinxia Li, Kuanwen Wang, Lihui Zhou, Xuhong Guo, Sheng Dai
Summary: ZIF-8-derived single atom catalysts with different hollow carbon nanoarchitectures are synthesized using a polyelectrolyte brush-templated-growth approach. Fe, Co, Cu, and Pd single-atom catalysts are successfully synthesized, with Fe catalysts showing superior oxygen reduction reaction performance. The study explores the morphology and structure of the derived materials, revealing the exposure of high-quality single-atom active sites and the promotion of mass transfer in the electrochemical process.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Biochemistry & Molecular Biology
Xuexue Liang, Ge Bai, Chun Hua Niu, Zhong Wei, Zhi Gang Lei, Kai Chen, Xuhong Guo
Summary: Plant diseases caused by fungi and bacteria are a major threat to crop production and food security. In this study, CMCS/PA/Zn2+ nanoparticles were developed using carboxymethyl chitosan, phytic acid, and metal ions via flash nanoprecipitation. These nanoparticles showed outstanding antibacterial and antifungal activities and can release Zn2+ in an acidic environment, making them environmentally-friendly and safe agricultural antimicrobials.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Analytical
Chuanlu Ding, Hao Xing, Xuhong Guo, Huihui Yuan, Cuihua Li, Xiulan Zhang, Xin Jia
Summary: Multifunctional label-free N-doped ratiometric fluorescence carbon dots (N-CDs) are developed from tea leaves extract and o-phenylenediamine by a mild solvothermal method. The N-CDs have nitrogen- and oxygen-containing functional groups on the surface, providing excellent hydrophilia. The N-CDs exhibit two completely independent ratiometric fluorescence channels for detecting Hg2+ and H2O, showing potential in multifunctional detection.
ANALYTICAL METHODS
(2023)
Article
Polymer Science
Xin Liu, Xuhong Guo, Qi Liao
Summary: In this study, an algorithm for accurately estimating viscosity is developed using molecular dynamics simulations and the Green-Kubo formula. This algorithm can be applied to complex systems with long correlations, such as macromolecular and biological simulation systems.