Talita M. Lacerda^1,2,*, Alessandro Gandini^1,2

Journal of Renewable Materials, Vol.2, No.1, pp. 2-12, 2014, DOI:10.7569/JRM.2013.634127

Abstract The inevitable future scarcity of fossil resources, coupled with sustainability considerations, have stimulated the use of renewable resources for material synthesis, and highly effi cient polymerization methods that meet the requirements of green chemistry have drawn attention to fatty acid-based polymers. Additionally, the polymerization of furan monomers and the exploitation of some of the chemical peculiarities of the furan heterocycle have generated a wide diversity of macromolecular materials. A novel approach is reviewed here, calling upon the combined use of both vegetable oils and their derivatives together with furans, as a promising technique to obtain new materials from two renewable… More >

V. K. Srivastava¹, A. Pizzi^2,3,*

Journal of Renewable Materials, Vol.2, No.3, pp. 201-206, 2014, DOI:10.7569/JRM.2014.634107

Abstract Fine wood powder/furanic foams were prepared with a strong predominance of the wood component. Low weight and density are important properties of foamed composites. Focusing on preparing light materials, wood foam composites were made using a chemical foaming method and expanded using diethyl ether as the foaming agent. The additives were added to note their effect on the density and mechanical properties, like impact strength and Young’s moduli, of the expanded composites. Various tests and scanning electron microscopy analysis were also performed. The foaming agent resulted in closed cells with varied sizes and more or less regular shapes, and with… More >

Junshan Zhao^1,#, Yihan Shi^1,#, Ming Zhang¹, Liu Zhang¹, Xumei Cui¹, Xinghua Zhu², Jitong Su¹, Dandan Jing¹, Dingyu Yang^1,*

Journal of Renewable Materials, Vol.11, No.1, pp. 79-91, 2023, DOI:10.32604/jrm.2023.022030

Abstract In this paper, the non-polluting, non-toxic, and eco-friendly material-MnO₂ electrodes were deposited on three-dimensional porous nickel (Ni) foam by linear sweep voltammetry, and the entire electrodeposition process did not require sintering of the material, which was fast and convenient while avoiding unnecessary energy consumption and thus was environmentally friendly. Scanning electron microscopy (SEM) and transmission electron microscopy were used to examine the surface and microscopic characteristics of each sample (TEM). Chronoamperometry (CA), cyclic voltammetry (CV), galvanostatic charge/discharge (GCD), and electrochemical impedance spectroscopy (EIS) were then used to determine the electrochemical characteristics of the manufactured samples. The result suggests that the… More >

Yizhang Wang¹, Zhaoyang Yu¹, Jinbo Hu^1,2,*, Shanshan Chang¹, Yuan Liu¹, Ting Li², Gonggang Liu^1,*, Xiaodong (Alice) Wang³

Journal of Renewable Materials, Vol.11, No.1, pp. 147-165, 2023, DOI:10.32604/jrm.2023.021306

Abstract In this paper, the residue from bamboo factory has been used to design photo-Fenton catalyst, which has the advantages of low cost and magnetic recycling. The photo-Fenton catalytic performance of the biocarbon-based catalyst was excellent and its optimal preparation process was also explored by response surface methodology. First, bamboo-carbon fiber was selected as the photo-Fenton catalyst carrier. Subsequently, the surface of the carbon fiber was modified, with which dopamine, nano-Fe₃O₄ and nano-TiO₂ were successively loaded by hydrothermal method. After examined single factor tests, four factors including dopamine concentration, ferric chloride mass, P25 titanium dioxide mass and liquid-solid ratio were selected… More > Graphic Abstract

Baian Shen, Haichao Li^*, Zixiang Guo, Jingxiao Li, Yuting Bao

Journal of Renewable Materials, Vol.11, No.1, pp. 185-195, 2023, DOI:10.32604/jrm.2023.020040

Abstract The activation effect of boric acid as an activator is good, and we investigate the best activation conditions for the boric acid impregnation method. To represent the structural characteristics and adsorption performance of the Stellera Chamaejasme based carbon molecular sieves, we use Brunner-Emmet-Teller (BET) measurements, scanning electron microscope (SEM), Raman spectra (Raman), X-ray diffraction (XRD), and adsorption property measurement. When the loading ratio was 0.68:1, the specific surface area was 532.21 m²/g, the total pore volume was 0.24 cm³/g, the average pore size was 1.81 nm, the adsorption value of methylene blue was 145.28 mg/g, and the adsorption value of iodine was 713.33 mg/g,… More >

Vani A. Hiremani^*, Kishore Kumar Senapati

Computer Systems Science and Engineering, Vol.44, No.3, pp. 2603-2618, 2023, DOI:10.32604/csse.2023.027612

Abstract The inter-class face classification problem is more reasonable than the intra-class classification problem. To address this issue, we have carried out empirical research on classifying Indian people to their geographical regions. This work aimed to construct a computational classification model for classifying Indian regional face images acquired from south and east regions of India, referring to human vision. We have created an Automated Human Intelligence System (AHIS) to evaluate human visual capabilities. Analysis of AHIS response showed that face shape is a discriminative feature among the other facial features. We have developed a modified convolutional neural network to characterize the… More >

Aibao Zhou¹, Yue Yuan^1,*, Manying Kang²

International Journal of Mental Health Promotion, Vol.24, No.5, pp. 665-677, 2022, DOI:10.32604/ijmhp.2022.019623

Abstract Background: Since the outbreak of COVID-19 caused adults suffer from mental disorders, it would be an essential for psychologist to help individuals overcome mental disorders. Objective: This study aim to explore whether the intervention of mindfulness is an efficient method to enhance adolescents’ emotional intelligence (EI) and psychological capital (PC) to provide a theoretical basis and future directions for both targeted crisis intervention and psychological trauma recovery plans. Design: This research was designed as randomized controlled trial and total of 798 students were evaluated statistically. Methods: We used paired-sample t-tests and repeated measures ANOVA to compare every factor defined above… More >

Xin Wan^1,2,#, Zhigang Xia^3,4,#, Xiaoli Yang^1,2, Chengfeng Zhou², Yuanming Zhang^1,2, Haoxi Ben^1,2, Guangting Han^1,2, Wei Jiang^1,2,*

Journal of Renewable Materials, Vol.10, No.12, pp. 3391-3404, 2022, DOI:10.32604/jrm.2022.021102

Abstract The toxic dyestuffs from printing and dyeing wastewater have caused serious damages to the ecological environment, thus exploring effective methods to remove them having become a key topic. Here, a series of biochar samples were synthesized form kenaf to adsorb methylene blue (MB), which was acted as the dye representative for the test of adsorption capacity due to the presence of abundant double bond and aromatic heterocyclic ring. By tuning the raw materials and pyrolysis temperature, a super adsorption capacity about 164.21 mg·g^–1 was obtained over the biochar that pyrolyzed at 700°C with the kenaf fiber as raw material. Through… More >

Xiaoling Qu, Xingshuo Yang, Siqi Li, Changan Tian, Zaibo Li, Zhiguang Zhao^*

Journal of Renewable Materials, Vol.10, No.12, pp. 3335-3350, 2022, DOI:10.32604/jrm.2022.020636

Abstract The associated MgO in limestone is believed to affect the volume stability of cementitious materials at room temperature, which limits the utilization of low-grade limestone. In this study, MgO was used as an alkali activator instead of partial CaO to prepare the aerated concrete under hydrothermal conditions. The expansion process was studied to evaluate the influence of the raw materials on the gas forming stability of the slurry. The pore structure (porosity, pore size and its distribution) was analyzed by the image method. The physic-mechanical properties (density, strength, thermal properties) of concrete with the addition of MgO were comprehensively investigated.… More >

TRINIDAD MONTERO-VILCHEZ^1,2,*, MANUEL SANCHEZ-DIAZ^1,2, CAROLINA MONTERO-VILCHEZ³, ALVARO SIERRA-SANCHEZ², SALVADOR ARIAS-SANTIAGO^1,2,4

BIOCELL, Vol.46, No.11, pp. 2363-2367, 2022, DOI:10.32604/biocell.2022.021399

Abstract Atopic dermatitis (AD) is a chronic cutaneous inflammatory disease caused by an interaction between genetic, immune and epidermal barrier factors. Several treatments can be used to treat this disease but there are patients that do not respond to actual drugs. So, there is a need to develop effective therapies for AD. Mesenchymal stem cells (MSCs) are non-hematopoietic multipotent adult progenitor cells with immunomodulatory power and self-regenerating capacity to repair tissue damage, so they could be a potential effective treatment for AD. MSCs-Conditioned Medium (CM) and MSCs-exosomes are cell-free preparation with molecules secreted by stem cells that could be also beneficial… More >