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4- Nitrophenol

Xem 1-7 trên 7 kết quả 4- Nitrophenol
  • The development of a protocol for biosynthesizing nanomaterial in an eco-friendly manner is a major concern in the field of microbial nanotechnology. In this study, microbial synthesis of silver nanoparticles (AgNPs) with a high level of bionanocatalytic activity was accomplished utilizing cell extracts of Penicillium digitatum FCMR-728 as the agents for reducing, capping and stabilizing. The presence of AgNPs was confirmed by an indication of a surface plasm on resonance band via UV–vis spectrum at 550 nm.

    pdf14p nguaconbaynhay1 04-12-2019 10 0   Download

  • Bài viết này, vật liệu nano vàng (AuNPs) được tổng hợp bằng phương pháp khử hóa học sử dụng dextran với vai trò vừa là chất khử vừa là chất bảo vệ. Một số thông số ảnh hưởng tới quá trình tổng hợp nano vàng như: nồng độ axit cloroauric, nồng độ dextran, nhiệt độ, thời gian và pH của hệ phản ứng đã được nghiên cứu.

    pdf11p nguaconbaynhay9 03-12-2020 23 1   Download

  • Nitrophenols (such as o-nitrophenol (ONP), p-nitrophenol (PNP), and 2,4-dinitrophenol (DNP)) are priority environmental pollutants. Their toxicity is pH dependent, and these molecular species of nitrophenols exhibit higher toxicity than their anionic counterparts. Herein, for the first time, a method for the in situ measurement of nitrophenols in acidic industrial wastewater was developed using diffusive gradients in thin films (DGT) with lignocellulose hazelnut shell-derived activated carbons (HSACs) as the binding agents. Nylon membranes (0.1 lm rated) with diffusion coefficients of (2.

    pdf10p trinhthamhodang1 14-11-2019 11 0   Download

  • The heat of adsorption was determined from isotherm parameters, which in turn were calculated by Frendlich equation. The method was applied for the determination of adsorption heat of p-nitrophenol, p-nitroaniline and 2,4-dinitrophenol on TW-2 and CAL 12× 40 activated carbons. With the approach, it is easily to cover the influence of the whole range of surface loading on the heat of adsorption, especialy in low surface coverage.

    pdf7p lalala7 16-12-2015 26 2   Download

  • Bài viết trình bày hợp chất dị hoàn 2-benzylbenzoxazole được lựa chọn tổng hợp thông qua phản ứng đóng vòng giữa hai loại chất nền đơn giản 2-nitrophenol và acetophenone sử dụng lưu huỳnh/1,4-diazabicyclo[2.2.2]octane (DABCO) như là chất khử để khảo sát các điều kiện ảnh hưởng đến hiệu suất của phản ứng nêu trên.

    pdf10p kequaidan7 04-09-2020 15 0   Download

  • Diverse communities of beneficial plant growth promoting diazotrophs harbour in Rice rhizosphere which mostly plays a significant role in supplementing Biofertilizer, bioprotectant and bio stimulator and improves the crop productivity directly or indirectly. 53 rhizobacterial were isolated from lowland rice rhizosphere of Jorhat district of Assam in non-selective TSA media.

    pdf12p cothumenhmong3 22-02-2020 19 0   Download

  • An experiment was carried out in the Department of Soil Science and Agricultural Chemistry, College of Agriculture, Vellayani during 2017-18 in order to evaluate the effect of phosphate solubilizers on the activity of different enzymes and microbial parameters in the soil and its impact on crop growth and yield of test crop tomato var. Vellayani Vijai. The experiment was laid out in a randomized block design with fourteen treatments and three replications. Treatments were the combinations of four doses of P (100%, 75%, 50%, 25%) along with P solubilizers (AMF, Pseudomonas, and Bacillus.).

    pdf13p nguathienthan3 27-02-2020 16 0   Download

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