Nano Reports is a scholarly open-access, peer-reviewed, international and interdisciplinary research journal with a wide-ranging coverage of nanoscience and nanotechnology. Submissions are solicited in all topical areas, ranging from basic aspects of the science of nanoscale materials to practical applications of such materials.
high-efficient monoclinic BiVO4 adsorbent for selective
Author: Huan Ouyang,Yuanyuan Sun*, Jianqiang Yu*
Abstract: Searching for a new chemically durable and efficiency absorbent materials for selenite remain highly desirable, for both waste management and contamination remediation. For this reason, a kind of monoclinic scheelite BiVO4 (ms-BiVO4 ) was tested for its ability to remove selenite anions from the aqueous solutions. And the ms-BiVO4 was shown to have the high adsorption capacity of 43.2 mg/g by forming Bi-O-Se bond with SeO32−. The ms-BiVO4 also displayed fast uptake kinetics. In addition, the adsorbent showed excellent selectivity for SeO32− between the coexistence anions with large concentrations and target anions SeO32−. Comparing with other metal oxide adsorbents, the ms-BiVO4 was also able to work relatively steadily in a broad pH range of 4−11.
Keywords: Monoclinic scheelite BiVO4; Selenite;Adsorption; Selectivity.
biomass derived WO2 based nano-aerogel for the supercapacitorwith
Author: Zhuocheng Yin, Xiaoliang Zhao, Dongjiang Yang*
Abstract: WO2 is a promising candidate for energy storage materials due to the excellent theoretical specific capacitance, physical and chemical stability.Therefore, developing WO2 based electrode is vital for supercapacitor in real application. Hence, we prepared a WO2/mesoporous biomass carbon nanoaerogelcomposite electrode for enhancing supercapacitor performance.This material was synthesizedby a scalable and simpleion-exchange method derived from sustainable chitosan biomass. The specific capacitance of WO2/BC-2 can obtained as high as 27 F g-1 at a current density of 0.2 A g-1 and a high specific surface area of 212.69 m2 g-1. The good capacitancecan be attributed to the high specific surface area of biomass carbon, the redox reaction between WO2electrode and electrolyte, and the oxygen vacancy of WO2.
Keywords: WO2 nanoparticles; Carbon aerogel; Chitosan biomass; Supercapacitor
nanotheranostic agent based on ACNP@FePt for potential cancer therapy
Author: Chunmiao Liu, YihuiZou, Dongjiang Yang*
Abstract: Functionalized nanotheranostic agents havebeen highly commended due to the application for cancer therapy. Herein, based on the FePtnanocubes (NCs)and activated carbonnanoparticles(ACNP), we develop a pH-responsivetheranostic agent (ACNP@FePt) for potential application in cancerinhibition. The FePt will release highly active Fe ions dueto the low pH in tumor cells, which would catalyze H2O2 decomposition into reactive oxygen species (ROS) within thecells and further induce cancer cell apoptosis. The excellent adsorption ability of ACNP could keep FePt high concentration for a certain period of time in physiological environment. After conjugation with meso-2, 3-dimercaptosuccinic acid (DMSA), the ACNP@FePt presents good compatibility and stability in physiological solutions.tLyP-1 (Cys-Gly-Asn-Lys-Arg-Thr-Arg)-conjugatedACNP@FePt could effectively target to tLyP-1 receptor-positive tumor cells and show significant destruction to tumor cells but no obvious toxicity to normal cells, which was evaluated bycellular survival rateassay.Therefore, the ACNP@FePt could serve as a potentialtheranosticnanoplatform of guided cancer therapy.
Keywords: FePtnanocubes; Cancer inhibition; Nano-activated carbon; Reactive oxygen species.
based on porous carbon aerogel for high performance lithium-sulfur
Author: Zhixian Xie, Fengyu Quan*
Abstract: Due to it high energy density, lithium–sulfur batteries has attract great attention. But there have many problems must to be solve. Specially, “shuttling effect” is one of the biggest problem which must to be settled. In this article, an interlayer from porous carbon aerogel is introduced in lithium-sulfur batteries which can hold lithium sulfide into the sulfur electrode to reduce the impact of shuttle effect. Owing to the higher degree of graphitization, the interlayer also can provide additional conductive frames to improve the conductive of lithium–sulfur batteries. Porous carbon aerogels (PCA) exhibit good electrical conductivity and mechanical stability. In this article, the battery with PCAFe interlayer showed high cycle performance (The initial cycles’ capacity is 1628 mAh g-1. After 200 charge-discharge cycles, the capacity is 807 mAh g-1).
Keywords: Porous carbon aerogel; Lithium-sulfur batteries; Interlayer; Lithium sulfide.
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