- OPEN ACCESS ARTICLE
- Alleviation of Drought Stress in Wheat Using Exogenous Ulva prolifera Extract Produced by Enzymatic Hydrolysis
- Journal of Renewable Materials, Vol.8, No.11, pp. 1519-1529, 2020, DOI:10.32604/jrm.2020.011453
- Abstract Drought is one of the major abiotic stresses that affect plant growth and reduce agricultural productivity. Use of algal extract as a biostimulant is gaining increased attention from researchers. This study aimed to investigate the potential of Ulva prolifera extract (UE) as a biostimulant when enzymatically extracted under conditions of water deficit. UE treatments (0.02%, 0.06%, and 0.1%) significantly improved the shoot length, root length, and dry weight of roots after 120 h of drought stress relative to that in treatment with the negative control. An increase in catalase (CAT) and peroxidase (POD) activity was also observed that resulted in… More
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- OPEN ACCESS ARTICLE
- Utilization of Bayer Red Mud Derived from Bauxite for Belite-Ferroaluminate Cement Production
- Journal of Renewable Materials, Vol.8, No.11, pp. 1531-1541, 2020, DOI:10.32604/jrm.2020.011462
- Abstract Bayer red mud (BRM) is a kind of industrial solid waste characterized by huge volume and high alkalinity. Its disposal generates serious environmental pollution and occupies a large number of farmland. The utilization and recycling of BRM is currently a crucial issue and needs to be addressed as soon as possible. The chemical composition of BRM is similar to cement clinker. In this study, the feasibility of preparing Belite-ferroaluminate clinker (BFAC) with different BRM was explored. The physical properties, mechanics performance, radioactivity levels and trace harmful metals leaching were measured. XRD, BEI and EDS were used to characterize the mineral… More
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- OPEN ACCESS ARTICLE
- Properties of ABS/Organic-Attapulgite Nanocomposites Parts Fabricated by Fused Deposition Modeling
- Journal of Renewable Materials, Vol.8, No.11, pp. 1505-1518, 2020, DOI:10.32604/jrm.2020.010544
- Abstract The paper discusses the mechanical and thermal performance manifested in natural nanorods attapulgite (ATP) reinforced Acrylonitrile butadiene styrene (ABS) nanocomposites in the process of fused deposition modeling (FDM). Molten extrusion technique was taken to manufacture the filaments of ABS/organic-attapulgite (OAT) nanocomposites with different mass fraction and the printing operation was made by one commercial FDM three-dimensional (3D) printer. Results indicate that the mechanical performance of these FDM 3D printed specimens are improved obviously via the introduction of OAT, and tensile strength of the ABS/OAT nanocomposites parts with only 2 wt% OAT addition is enhanced by 48.1%. At the same time,… More
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- Chitosan and Carboxymethylchitosan as High Turbidity Water Biocoagulants
- Journal of Renewable Materials, Vol.8, No.11, pp. 1489-1504, 2020, DOI:10.32604/jrm.2020.011629
- Abstract Biocoagulants emerges as a promising technology in water treatment, in order to exploit renewable and biodegradable materials. The present work aims to study the coagulant action of chitosan and carboxymethylchitosan on water with very high turbidity (above 300 NTU), contrasting the physicochemical results with those obtained for aluminum sulphate. Carboxymethylchitosan was produced by the Williamson’s ethers synthesis and characterized by potentiometric titration, FTIR and 1 H-NMR. The coagulant tests were performed using synthetic water in a Jar-test equipment, through the induction of high and low velocity gradients, followed by sedimentation. The results showed turbidity and color removal efficiencies above 99%… More
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- Preparation and Characterization of Phenolic Prepolymer Impregnated Chinese Fir by Cyclic Increasing-Pressure Method with Green and Efficient
- Journal of Renewable Materials, Vol.8, No.11, pp. 1473-1488, 2020, DOI:10.32604/jrm.2020.011788
- Abstract The Chinese fir wood was impregnated using a cyclic increasingpressure method (CIPM) with phenolic prepolymers as the impregnating modifier. Unmodified Chinese fir and progressive increasing-pressure method (PIPM) impregnated Chinese fir were used as reference samples and were compared and analyzed. The product’s chemical structure, internal morphology, crystal structure, and heat resistance were characterized. The transversal and longitudinal sections showed better filling effects, so that it bore greater external loading and reduced the water storage space. CIPM infused more phenolic prepolymer into the Chinese fir. Not only producing more physical filling but also forming more hydrogen bond associations and chemical bond… More
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- OPEN ACCESS REVIEW
- Fabrication and Application of CeO2 Nanostructure with Different Morphologies: A Review
- Journal of Renewable Materials, Vol.8, No.11, pp. 1443-1472, 2020, DOI:10.32604/jrm.2020.012113
- Abstract CeO2, as a significant functional material, Has a widespread application in many fields due to its excellent properties. In this review, we sum up a serious of methods to prepare and differentiate nanostructured cerium oxide with various morphologies based on dimensionality and its main applications in industry. We mainly summary the different strategies to synthetic the CeO2 with 0-D, 1-D, 2-D and 3-D and the key parameters which may affect the nanostructures. We hope that this review helps researchers master can look up CeO2 related knowledge more quickly upon the synthetic methods and comparing various morphologies or fabricating ways to… More
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