Article
Engineering, Chemical
Yongjun Sun, Yuanyuan Yu, Deng Li, Jun Zhai, Huaili Zheng
Summary: The study investigated the coagulation behavior and floc characteristics of a hybrid flocculant called PAC-CA for removing TiO2 nanoparticles. Various factors such as monomer mass ratio, initiator concentration, and reaction temperature were studied to optimize the coagulation performance. The characterization of PAC-CA through different methods revealed its successful copolymerization and the effect of additives like kaolin and humic acid on coagulation efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Wioleta Iskra-Kozak, Janusz Konkol
Summary: This article explores the effects of aluminum nanoxide on the physical, strength, and structural properties of cement mortars. It is found that the addition of 1% aluminum nanoxide leads to a significant increase in compressive strength and influences the fractal dimensions of the fracture surface profile lines.
Article
Engineering, Chemical
Chenghao Wang, Yuanping Cheng, Jingyu Jiang, Liang Wang, Minghao Yi
Summary: Gas adsorption can reduce coal breakage energy and prevent coal and gas outbursts. The increase in adsorption pressure and desorption duration decreases and increases the surface work, respectively. The reduction in surface work is primarily due to gas adsorbed in micropores with a size < 1.5 nm.
Article
Mathematics, Interdisciplinary Applications
Gui Yang, Zhuanzhuan Chen, Yifei Sun, Yang Jiang
Summary: Particle breakage has a significant impact on the mechanical properties of granular materials. This study investigated the effects of confining pressure, relative density, and initial grading on the particle breakage behavior of granular materials. The results show that particle breakage increases with increasing confining pressure or relative density, but decreases with increasing coefficient of uniformity. The grading curves of the granular materials after triaxial tests can be simulated by a power-law function with fractal dimension. A normalized relation between the particle breakage extent and confining pressure considering relative density and grading index was also found.
FRACTAL AND FRACTIONAL
(2022)
Article
Mathematics, Interdisciplinary Applications
Cheng Chen, Xin Zhang, Yifei Sun, Lei Zhang, Rui Rui, Zhide Wang
Summary: Particle breakage significantly affects the particle size distribution and mechanical behavior of ballast on railways. A simulation using the discrete element method was conducted to analyze the contact orientations and particle breakage from a micromechanical perspective. The results showed that increased confining pressure and axial strain led to higher grain breakage and fractal dimension of the ballast. The analysis also revealed that first-generation breakage accounted for the majority, while subsequent generations decreased in proportion. Additionally, there was a linear correlation between fractal dimension and grain breakage, while a quadratic curve relation was observed between fractal dimension and volumetric strain.
FRACTAL AND FRACTIONAL
(2022)
Article
Materials Science, Ceramics
Fanghui Fu, Nanyan Hu, Yicheng Ye, Guan Chen
Summary: This study successfully prepared SiO2-Al2O3-CaO-based foam ceramics (SACFC) using phosphorus tailings and coal gangue as raw materials and different foaming agents. The effects of different high-temperature foaming agents (CaCO3, carbon black, MnO2, and Fe2O3) on the microstructure and compressive strength of SACFC were investigated and the corresponding foaming mechanism was revealed. The results showed that CaCO3 increased the porosity of SACFC, but the precipitation of needle-like anorthite reduced its mechanical properties.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Environmental
Kanika Saxena, Urmila Brighu
Summary: Isolated studies for the evaluation of coagulation at different dimensions have been discussed. In this work, a comprehensive methodology was described, including dosing approach, mathematical modeling, chemical analysis, image analysis, and various analytical procedures. The results showed that RMSE, HYBRID, and Chi-Square could be successfully used for non-linear analysis, while ARE and MPSD could not be used at low concentrations. Additionally, image processing was used for analysis of floc size and fractal dimension.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Marine
Lan Lin, Sa Li, Linying Huo, Xin Liu
Summary: This paper systematically investigates the fractal behavior of coral sand in the South China Sea under impact loads. It finds that the gradation curve of coral sand exhibits evident fractal characteristics after fragmentation, and the ultimate fractal dimension is independent of particle size and uniformity coefficient. A relative breakage index based on the relationship between fractal dimensions is proposed.
Article
Engineering, Chemical
Radoslaw Krzosa, Lukasz Makowski, Wojciech Orciuch, Gill Ozcan-Taskin, Radoslaw Adamek, Michal Wojasinski
Summary: Industrial grade titanium dioxide powders from different producers were tested using various techniques such as composition analysis, scanning electron microscopy, and small angle light scattering. The results showed impurities and different particle size distributions among the powders. The tensile strength of the agglomerates was calculated using attractive Van der Waals forces and found to vary from 3.50 Pa to 49.84 Pa. The method presented in this study can be useful for characterizing and processing titanium dioxide powders.
Article
Engineering, Environmental
Xue Li, Jiankun Liu, Jinze Li
Summary: This study investigates the fractal dimension, particle shape, and particle breakage of calcareous sand under multi-level ending pressure. The compression behavior of calcareous sand is similar to that of silt soil, with significant particle breakage occurring under high-stress levels. The shape indexes, such as sphericity, aspect ratio, convexity, and overall regularity, increase with increasing axial stress or decreasing average grain size. The surface and mass fractal dimensions of the tested specimens range from 1.12 to 1.93 and from 2.14 to 2.92, respectively. The fractal dimensions and relative breakage ratio increase logarithmically with increasing axial stress. Additionally, an increase in average grain size leads to an increase in the relative breakage ratio and a decrease in fractal dimension. There is a linear relationship between surface or mass fractal dimension and relative breakage ratio.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2022)
Article
Materials Science, Multidisciplinary
Dongtao Wu, Wenbing Guo, Feng Luo, Meng Li
Summary: This study conducted a physical compression experiment of mixed size gangue and used fractal theory to quantify the breakage degree of the gangue particles. A discrete element numerical simulation was then used to study the particle breakage mechanism. The results showed that the settlement decreased with increasing Talbot's exponent (n), and the particle size distribution of the compressed gangue sample exhibited excellent fractal characteristics. Large-particle-size gangue mainly broke at the initial loading stage, while the crushing ratio of small-particle-size gangue increased gradually during compaction. Large-particle-size gangue formed a strong skeletal structure and cracks mainly appeared near the force chain skeleton.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Environmental Sciences
Haiyang Zhang, Lili Li, Shaozhe Cheng, Cheng Li, Fangzhou Liu, Peizhong Wang, Lianjun Sun, Junbo Huang, Wen Zhang, Xuezhi Zhang
Summary: Co-coagulation flotation (CCF) is a novel flotation technology that is more efficient in algal removal compared to traditional mechanical coagulation flotation (MCF). This study compared the algal removal performance of continuous CCF and MCF using water samples from Lake Dianchi with severe Microcystis aeruginosa blooms. The results showed that CCF saved more than 50% of the coagulant/flocculant dosage compared to MCF while achieving a removal efficiency of over 95%. The flocs formed in CCF were larger, more spherical, and had a higher fractal dimension compared to those in MCF.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Sabrina de Oliveira Anicio, Veronica dos Santos Lopes, Andre Luiz de Oliveira
Summary: The study compared the evolution of PSD and D-f parameters during coagulation and flocculation processes with different chemical coagulants and conditions. It was found that the PSD beta(1) parameter tends to increase over time, indicating formation of larger particles, but decreases after initial growth with higher coagulant dosages and use of certain chemicals. The D-f parameter stabilizes during most of the flocculation process, suggesting that the structural organization of flocs is not necessarily linked to variations in size.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Mathematics, Interdisciplinary Applications
Walker Arce, James Pierce, Mihaela Teodora Velcsov
Summary: The study aimed to derive a generalized fractal feature that operates without iterative box sizes or any linear regression estimators, validate it, and apply it to the classification of detailed organic images of viruses. Results indicate that the proposed method is accurate for known fractals, shows differing trends for color fractals, and can uniquely identify viruses based on their computed fractal features.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Construction & Building Technology
Hongjuan Wu, Chengqin Chen, Wei Zhang, Rui Wang, Wengang Zhang
Summary: Nano-clay has the potential to enhance the performance of cement-based materials, with the effectiveness depending on its dispersion. This study investigated the impact of different dispersion techniques on the properties and pore structure complexity of cement-based materials. Mechanical dispersion exhibited better dispersion compared to manual dispersion, resulting in superior mechanical properties. The addition of nano-clay improved the internal pore structure of the materials, with a surface fractal dimension exhibiting a strong linear relationship with mechanical properties and pore structure.
Article
Chemistry, Physical
Liping Fang, Jingwei Hou, Cuihong Xu, Yaru Wang, Ji Li, Feng Xiao, Dongsheng Wang
APPLIED SURFACE SCIENCE
(2018)
Article
Chemistry, Physical
Jing Ai, Lian Yang, Guiying Liao, Hua Xia, Feng Xiao
APPLIED SURFACE SCIENCE
(2018)
Article
Engineering, Chemical
Situ Mu, Kang Xiao, Huiju Fan, Chun Liu, Shuai Liang, Feng Xiao, Xiaomao Wang, Xia Huang
SEPARATION AND PURIFICATION TECHNOLOGY
(2018)
Article
Environmental Sciences
Libing Liu, Qinxue Yang, Pin Wang, Feng Xiao, Ruyuan Jiao, Guangyu An, Dongsheng Wang
JOURNAL OF ENVIRONMENTAL SCIENCES
(2019)
Article
Nanoscience & Nanotechnology
Wenrui Cao, Muen Han, Lai Lyu, Chun Hu, Feng Xiao
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
Environmental Sciences
Lipeng Tang, Feng Xiao, Qunshan Wei, Yanbiao Liu, Yubin Zou, Jianshe Liu, Wolfgang Sand, Christopher Chow
Article
Engineering, Environmental
Yubin Zou, Wentao Li, Lian Yang, Feng Xiao, Guangyu An, Yue Wang, Dongsheng Wang
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Environmental Sciences
Pin Wang, Ruyuan Jiao, Libing Liu, Feng Xiao, Guangyu An, Dongsheng Wang
Article
Environmental Sciences
Pan Gao, Xuanjin Chen, Mengjie Hao, Feng Xiao, Shaoxia Yang
Article
Chemistry, Physical
Songxue Wang, Jiayu Tian, Qiao Wang, Feng Xia, Shanshan Gao, Wenxin Shi, Fuyi Cui
APPLIED CATALYSIS B-ENVIRONMENTAL
(2019)
Article
Chemistry, Physical
Feng Xiao, Ping Xiao, Dongsheng Wang
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2019)
Article
Engineering, Environmental
Huarui Li, Jiayu Tian, Feng Xiao, Rui Huang, Shanshan Gao, Fuyi Cui, Shaobin Wang, Xiaoguang Duan
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Correction
Nanoscience & Nanotechnology
Wenrui Cao, Muen Han, Lai Lyu, Chun Hu, Feng Xiao
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Xiaojing Hu, Haoling Min, Sai Dai, Zhi Cai, Xiaonan Yang, Qiang Ding, Zhanyong Yang, Feng Xiao
Summary: In this study, a time-series renewable energy production simulation (REPS) is proposed to accurately predict power generation. The sensitivity of different sections' maintenance can be determined by comparing consumption rates. The results indicate that the quota in the transmission section has a higher sensitivity to consumption rates.
Article
Chemistry, Multidisciplinary
Guangyu An, Yuqian Jiang, Jinyang Xi, Libing Liu, Pin Wang, Feng Xiao, Dongsheng Wang
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)