Article
Biochemistry & Molecular Biology
Junwen Qi, Mengli Zeng, Zhigao Zhu, Yujun Zhou, Xiuyun Sun, Jiansheng Li
Summary: Polyacrylonitrile/aminated polymeric nanosphere (PAN/APN) nanofibers were successfully prepared by electrospinning for the removal of Cr(VI) from aqueous solution. The obtained PAN/APNs showed nitrogen functionalization and exhibited a high adsorption capacity. The adsorption process followed pseudo-second order kinetics and was found to be spontaneous and endothermic. Coexisting ions had little influence on Cr(VI) adsorption, except for SO42-, which significantly decreased the removal performance. The adsorption mechanism possibly involved electrostatic adsorption, redox reaction, and chelation.
Article
Nanoscience & Nanotechnology
Yinghui Zhao, Qin Yang, Bin Yan, Baicang Liu, Yingchun Gu, Yi Lin, Jiaojiao Shang, Wentao Liu, Sheng Chen, Jianwu Lan
Summary: This study presents a facile method for preparing adsorption membrane-based aminated ultrathin polyacrylonitrile (UPAN-N) nanofibers to remove synthetic dyes from wastewater effectively. The resulting UPAN-N nanofiber membrane, modified with amino groups, exhibits an ultrahigh adsorption capacity and rapid adsorption rate for organic dyes.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Environmental
Wusong Xu, Wenjie Zheng, Fangjia Wang, Qizhong Xiong, Xian-Lei Shi, Yusef Kianpoor Kalkhajeh, Gang Xu, Hongjian Gao
Summary: The study successfully synthesized a recyclable iron-loaded aminated polyacrylonitrile fiber (PAN(A)F-Fe) for phosphate removal from wastewater with good adaptability and rapid chemical adsorption efficiency. The adsorbent exhibited excellent reusability in various ion solutions and effectively removed phosphate pollution in continuous flow processes.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Pan Cheng, Cancan Ji, Wei Hu, Peng Huang, Qihao Guo, Ming Xia, Qin Cheng, Jia Xu, Ke Liu, Dong Wang
Summary: In this study, a surface aminated ethylene vinyl alcohol copolymer (EVOH) ion-exchange chromatography nanofibrous membrane (PEI-NFM) with appropriate pore size and high-density ligands was successfully prepared using sea-island spinning and in situ crosslinking. The PEI-NFM exhibited high saturated capacity and dynamic adsorption performance towards RNA, along with high water flux and recognition binding property towards RNA mixed with other biomacromolecules.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Multidisciplinary
Xiaoyan Han, Zongying Xiao, Kai Chen, Qi Lai, Yingkui Yang
Summary: Robust hierarchical hybrids containing flower-like oxidized-polyacrylonitrile were synthesized by in situ polymerization of acrylonitrile and graphene oxide in combination with thermal treatment. The hybrids, which synergistically couple conductive graphene and a multi-electron redox-active matrix, exhibit large reversible capacity, high rate capability, and long cycle life, making them suitable for cost-efficient and sustainable batteries.
CHEMICAL COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Chuan-Bao Ma, Xue-Xue Han, Shu-jing Yang, Hai-Lin Cong, You-Qing Shen, Bing Yu
Summary: The experimental results demonstrate that the adsorption capacity of CNT-modified PAN film for copper ions increases with adsorption time until reaching equilibrium. Furthermore, the adsorption capacity increases with initial concentration and temperature of copper ions. The adsorption capacity of the membrane for copper ions varies at different pH levels.
Article
Chemistry, Multidisciplinary
Qinghua Wu, Xionghui Ling, Weigeng Huang, Xianhua Zeng, Longfei Fan, Junyu Lin, Wenhui Yu, Jiaen Yao, Wu Wen
Summary: This study investigated the functionalization of porous electrospinning polyacrylonitrile nanofiber (PPAN) surfaces with amine groups for the removal of methyl orange (MO) dye from aqueous solution. Experimental results showed that the maximum adsorption capacity of the PPAN-PEI and PPAN-TEPA nanofibrous mats was achieved at an initial solution pH of 3, and the mats could be successfully regenerated after 4 recycling processes. The Langmuir isotherm equation was well-fitted to the adsorption equilibrium data, and the adsorption of MO followed the pseudo-second-order equation and Weber-Morris model. Thermodynamic analysis indicated that the adsorption of MO was a spontaneous exothermic process.
Article
Chemistry, Physical
Shraban Kumar Sahoo, Gagan Kumar Panigrahi, Jitendra Kumar Sahoo, Arun Kumar Pradhan, Aditya Kumar Purohit, Jyoti Prakash Dhal
Summary: Graphene-based nanocomposites were successfully developed using electrospinning technique for the removal of toxic hexavalent chromium ions from water, showing high adsorption capacity and fitting well with kinetic and isotherm models.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Kaikai Zheng, Li Xiang, Chou Huang, Yan Wang, Haichuan Zhang, Ji Li
Summary: In this study, an inexpensive fiber material was developed for the removal and recovery of phosphate from wastewater. The material showed excellent adsorption performance and anti-interference ability, leading to successful phosphate removal in real wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Polymer Science
Aiza Farhani Zakaria, Sazlinda Kamaruzaman, Norizah Abdul Rahman
Summary: The study fabricated ACNFs with potential as adsorbents for the removal of heavy metal contaminants through electrospinning technique. ACNFs showed higher adsorption capacity compared to CNFs after thermal and acid treatment, with a more porous and compact fiber structure.
Article
Polymer Science
Rui Zhou, Wusong Xu, Peisen Liu, Shangyuan Zhao, Gang Xu, Qizhong Xiong, Weifeng Zhang, Chaochun Zhang, Xinxin Ye
Summary: Phosphorus is an important metabolic element for living organisms, but excessive phosphorus in water can cause eutrophication. Current research on phosphorus removal focuses on inorganic phosphorus, while there is a lack of research on organic phosphorus (OP) removal. This study constructed a novel FeOOH-loaded aminated polyacrylonitrile fiber (PAN(A)F-FeOOH) to enhance OP and phosphate removal. The results showed that PAN(A)F-FeOOH efficiently degraded phenylphosphonic acid (PPOA) with a removal efficiency of 99% and had high removal capacity for OP over multiple cycles. Additionally, PAN(A)F-FeOOH demonstrated excellent phosphate removal capacity with a maximal adsorption quantity of 9.92 mg P g(-1).
Article
Chemistry, Multidisciplinary
Fangqing Jiang, Xiaolei Wang, Xiaoyun Fan, Hui Zhu, Jiao Yin
Summary: Functionalization and morphological construction can enhance lithium-ion storage performance of organic polymers. In this study, porous polyacrylonitrile (PAN) nanofibers exhibit exceptional lithium ion storage performance through template-assisted electrospinning technology and thermal treatment, with samples annealed in air showing competitive capacities, rate capabilities, and a stable lifetime.
Article
Environmental Sciences
Wenkai Wu, Xiangpeng Gao, Bo Chen, Guanhua Meng, Jianjun Lian, Feng Xue, Qiaoping Kong, Jianhua Yang
Summary: A novel porous alginate adsorbent was synthesized using ion-imprinting and direct templating, which demonstrated great selectivity and high adsorption performance for copper ions and tetracycline. The adsorption of Cu(II) and TC was significantly affected by pH, temperature, and coexisting substances.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Yangyang Chen, Lianhuan Wang, Heyu Sun, Dongdong Zhang, Yiping Zhao, Li Chen
Summary: The study demonstrates that the catalytic performance of NGO-TiO2 composite catalysts can be improved with an appropriate ratio of NGO loading. A new mechanism explains how NGO enhances the TiO2 performance and addresses the posttreatment issue effectively.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Pengchao Wu, Shichao Yu, Haowei Liu, Xiaofan Zhang, Lumiao Hou, Shaohua Liu, Jianwei Fu
Summary: In this study, a fast, efficient, and selective adsorbent, PCNs@PCP-La, was developed for phosphate removal from water. PCNs@PCP-La exhibited high uptake capacity, wide pH range applicability, rapid adsorption kinetics, excellent selectivity, and good reusability.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Wenjing Tan, Chunmei Gao, Shifeng Ji, Yunqing Xing, Yi Guo, Baogui Liang
Summary: Membrane separation technology is widely used in wastewater treatment due to its cost-effectiveness and productivity. However, organic membrane fouling caused by humic acid is a major barrier to its further development. This study successfully addressed this issue through the production of composite materials and self-cleaning membranes, providing beneficial strategies and solutions for membrane contamination problems.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Qichang Peng, Qingdong Ruan, Bin Wang, Jinyuan Liu, Chao Huang, Xingwang Zhu, Dan Li, Liangliang Liu, Yinchuan Wang, Xiaolin Zhang, Jia Yan, Paul K. Chu, Hui Xu
Summary: The escalating issue of water pollution has led to significant attention in the field of photocatalysis. In this study, OV-Sb2WO6-X photocatalyst with oxygen vacancies was synthesized, which exhibited enhanced charge separation efficiency and improved photocatalytic activity. The introduction of oxygen vacancies was successfully controlled and characterized, and the modified photocatalyst showed superior degradation efficiency for dye wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wangcheng Zhang, Cunchuan Zheng, Hu Xie, Weichao Du
Summary: By using a specific curing agent ETB, the problem of dispersion and stability for oily epoxy resin in cement slurry system has been successfully solved. The application of the emulsified curing agent ETB in oilfield cement slurry system shows good rheological performance, resistance to high temperature and high pressure water loss, and corrosion resistance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
O. I. Krivonos, A. Babenko, O. B. Belskaya
Summary: This study synthesized biochar based on sapropel and investigated the effects of chemical modification on its textural characteristics, acid-base properties, and adsorption properties. The results showed that the chemical modification increased the fraction of micropores, specific surface area, and changed the surface properties of biochar. The experiment also revealed that biochar pretreated with alkali exhibited the maximum adsorption capacity for copper ions. A conceptual model identifying the mechanisms of copper adsorption on sapropel-based biosorbent was proposed.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
H. Lachhab, N. Benzbiria, A. Titi, S. Echihi, M. E. Belghiti, Y. Karzazi, A. Zarrouk, R. Touzani, C. Jama, F. Bentiss
Summary: The corrosion inhibitory potency of two new pyrimidine-pyrazole derivatives, PPA and PPC, was evaluated for mild steel in 1 M HCl. The results showed enhanced inhibition activities with increased concentration, reaching maximal values of 91.15% and 92.39% for PPA and PPC, respectively. However, the mitigation potency decreased with increasing temperature. SEM and XPS analysis revealed that PPA and PPC adsorbed on the mild steel surface, forming a shielding layer that prevented the dissolution of the steel in the acidic solution.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Shanmugapriya Sivalingam, D. Jeya Sundara Sharmila, Goutham Golla, Lakshmanan Arunachalam, Tarunendu Singh, G. Karthikeyan, A. Shanthi, Kannan Malaichamy
Summary: This study aims to develop a nano-biofungicide comprising of volatile essential oil molecules to enhance its efficacy in the field of agriculture through easily scalable green synthesis technique. The nano biofungicide was prepared through one pot hot melt ultrasonication technique with easy water dispersibility and long term stability. The physico-chemical analysis revealed that, nano bio-fungicides were amorphous sphere-shaped nanoparticles with low melting point. The encapsulation efficiency of major components of essential oil was determined, and it was found that they followed Higuchi model of release kinetics. The essential oil loaded nanostructured lipid carrier showed significantly higher mycelial growth inhibition compared to pure essential oil, indicating enhanced bio-efficacy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yinlong Li, Yingqing Zhan, Yiwen Chen, Hongshan Jia, Ximin Chen, Fei Zhu, Xulin Yang
Summary: In this study, ZnO quantum dots decorated MXene nanosheets were used as a functional filler for waterborne epoxy coating. The improved dispersion and synergy of ZnO QDs and MXene nanosheets enhanced the anticorrosion performance of the coating.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Fucheng Guan, Jing Tao, Qiang Yao, Zheng Li, Yihang Zhang, Shi Feng, Jianbin Sun, Qiang Yang, Xuecui Song, Jing Guo, Yuanfa Liu
Summary: This paper presents a method for preparing adsorbent materials based on biomass that can efficiently adsorb methylene blue. The experimental results show that the material has a hierarchical structure, high adsorption capacity, and reusability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Pengfei Hu, Zuli Mo, Weiliang Wang, Chengzhe Li, Zhaojia Guo, Guanqing Lin, Zhimin Guo
Summary: This study developed a novel in-situ particle vision and measurement (PVM) system to investigate heterocoagulation between coarse and fine particles in mineral processing. The experimental results showed that the degree of heterocoagulation decreased with increasing pH and stirring speed. Furthermore, under certain hydrodynamic conditions, coal particles were more distributed at the rear of the glass bead.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Tanveer ul Haq Zia, Anwar ul Haq Ali Shah, Behisht Ara, Kashif Gul
Summary: A label-free immunosensor for detection of hepatitis C core antigen was fabricated using a ternary nanocomposite based on polypyrrole, silver doped zinc oxide, and exfoliated graphene. The immunosensor demonstrated low detection limit, high selectivity, and stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoyan Feng, Jiachen Li, Lijun Liang, Linli Zhu, Sa Liu, Li Ren
Summary: In this study, polystyrene divinylbenzene microspheres were surface-modified by poly(carboxybetaine methacrylate) to develop an efficient hemoperfusion adsorbent for the removal of protein-bound toxins. The modified microspheres showed increased adsorption capacity and better biocompatibility, making them promising for clinical hemoperfusion therapy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoye Bi, Dong Xue, Yunpeng Wang, Chencheng Lv, Zexiong Li, Tao Zhao
Summary: This research aimed to develop a durable and formaldehyde-free flame retardant treatment for cotton fabrics. The results demonstrated successful grafting of phosphorous acid (PA) onto cotton fabrics, leading to enhanced flame resistance while maintaining the desired fabric characteristics.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Ruolin Wang, Wenjuan Sun, Haisheng Han, Dongping Tao
Summary: This study finds that Al-starch colloidal depressants can effectively inhibit the flotation of ultrafine calcite and chlorite, and increase the grade of valuable minerals. The chemisorption of Al-starch on mineral surface changes the functional group peaks and generates new O-Al functional groups.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wondimu K. Wakejo, Ali Maged, Beteley T. Meshesha, Joon W. Kang, Abayneh G. Demesa, Sandip Chakrabarti, Thallada Bhaskar, Ashok Kumar Gupta, Amit Bhatnagar
Summary: Simultaneously removing different pharmaceutical pollutants from wastewater is an important environmental issue, and the use of a system that can remove multiple contaminants at once is necessary. Functionalized biochar (FBC) has been found to be effective in simultaneously removing acetaminophen and ciprofloxacin and other pharmaceutical pollutants.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yu Wang, Fengwen Yan, Jie Wu, Zhijun Huang, Liuting Song, Shunda Yuan
Summary: In this study, Cu single atoms are anchored on the external surface of g-C3N4 nanofibers to maximize atom utilization. This catalyst exhibits excellent Fenton-like catalytic activity and good stability due to the full utilization of Cu active sites.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)