The role of activated carbon in protecting the roots of wheat seedlings under cadmium stress

2016 ◽  
Vol 36 (10) ◽  
Author(s):  
冯汉青 FENG Hanqing ◽  
杜变变 DU Bianbian ◽  
王庆文 WANG Qingwen ◽  
王荣方 WANG Rongfang ◽  
贾凌云 JIA Lingyun ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Cadmium Stress ◽  
Wheat Seedlings

scholarly journals Role of CO2 During Oxidative Dehydrogenation of Propane Over Bulk and Activated-Carbon Supported Cerium and Vanadium Based Catalysts

2021 ◽  
Author(s):  
Petar Djinović ◽  
Janez Zavašnik ◽  
Janvit Teržan ◽  
Ivan Jerman
Keyword(s):  
Catalytic Activity ◽  
Activated Carbon ◽  
Oxidative Dehydrogenation ◽  
Active Phase ◽  
Lattice Oxygen ◽  
Chemisorbed Oxygen ◽  
Catalytically Active ◽  
Temperature Programmed ◽  
Propane Cracking

AbstractCeO2, V2O5 and CeVO4 were synthesised as bulk oxides, or deposited over activated carbon, characterized by XRD, HRTEM, CO2-TPO, C3H8-TPR, DRIFTS and Raman techniques and tested in propane oxidative dehydrogenation using CO2. Complete oxidation of propane to CO and CO2 is favoured by lattice oxygen of CeO2. The temperature programmed experiments show the ~ 4 nm AC supported CeO2 crystallites become more susceptible to reduction by propane, but less prone to re-oxidation with CO2 compared to bulk CeO2. Catalytic activity of CeVO4/AC catalysts requires a 1–2 nm amorphous CeVO4 layer. During reaction, the amorphous CeVO4 layer crystallises and several atomic layers of carbon cover the CeVO4 surface, resulting in deactivation. During reaction, V2O5 is irreversibly reduced to V2O3. The lattice oxygen in bulk V2O5 favours catalytic activity and propene selectivity. Bulk V2O3 promotes only propane cracking with no propene selectivity. In VOx/AC materials, vanadium carbide is the catalytically active phase. Propane dehydrogenation over VC proceeds via chemisorbed oxygen species originating from the dissociated CO2. Graphic Abstract

scholarly journals Overcoming ammonia inhibition in anaerobic blackwater treatment with granular activated carbon: the role of electroactive microorganisms

2019 ◽  
Vol 5 (2) ◽  
pp. 383-396 ◽  
Author(s):  
Anna Patrícya Florentino ◽  
Ahmed Sharaf ◽  
Lei Zhang ◽  
Yang Liu
Keyword(s):  
Activated Carbon ◽  
Hydrogen Exchange ◽  
Granular Activated Carbon ◽  
Ammonia Concentration ◽  
Anaerobic Digesters ◽  
Ammonia Inhibition ◽  
High Ammonia

Methanogenesis and enrichment of microorganisms capable of interspecies electron and/or hydrogen exchange was investigated with addition of granular activated carbon (GAC) to batch anaerobic digesters treating vacuum collected blackwater with high ammonia concentration.

The role of H3PO4in the preparation of activated carbon from NaOH-treated rice husk residue

RSC Advances ◽  
2015 ◽  
Vol 5 (41) ◽  
pp. 32626-32636 ◽  
Author(s):  
Yaxin Li ◽  
Xian Zhang ◽  
Ruiguang Yang ◽  
Guiying Li ◽  
Changwei Hu
Keyword(s):  
Activated Carbon ◽  
Rice Husk

H3PO4promoted the decomposition of some species to form CO2and reacted with PBTRHR to form PH3.

Solar photocatalytic activity of nano-ZnO supported on activated carbon or brick grain particles: Role of adsorption in dye degradation

2014 ◽  
Vol 486 ◽  
pp. 159-169 ◽  
Author(s):  
Pankaj Raizada ◽  
Pardeep Singh ◽  
Amit Kumar ◽  
Gaurav Sharma ◽  
Brijesh Pare ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Activated Carbon ◽  
Dye Degradation ◽  
Nano Zno ◽  
Solar Photocatalytic Activity

Comparative analysis of the effect of epibrassinolide and 6-benzylaminopurine on the key components of the glutathione complex in the roots of wheat seedling under salinity.

Biomics ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 20-26
Author(s):  
D.R. Maslennikova ◽  
F.M. Shakirova
Keyword(s):  
Comparative Analysis ◽  
Wheat Seedling ◽  
Glutathione System ◽  
Glutathione S Transferase ◽  
Wheat Seedlings ◽  
Comparable Level ◽  
Endogenous Cytokinins ◽  
Main Components ◽  
First Time

The study carried out a comparative analysis of the effect of 24 epibrassinolide (EB) and 6-benzylaminopurine (BAP) on the growth and state of the main components of the glutathione system in the roots of wheat seedlings under the action of 2% NaCl, which for the first time revealed the ability of these phytohormones to similarly stabilize stress-induced decrease GSH / GSSG ratio, positively regulate the activity of glutathione reductase and glutathione-S-transferase. A comparable level of protective effect of BAP and EB on root length was revealed. The data obtained indicate that endogenous cytokinins may play the role of hormonal intermediates in the implementation of the protective.

scholarly journals Alternative Pathway is Involved in Nitric Oxide-Enhanced Tolerance to Cadmium Stress in Barley Roots

Plants ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 557 ◽  
Author(s):  
Li He ◽  
Xiaomin Wang ◽  
Ruijun Feng ◽  
Qiang He ◽  
Shengwang Wang ◽  
...  
Keyword(s):  
Stress Tolerance ◽  
Alternative Pathway ◽  
Cadmium Stress ◽  
Cd Stress ◽  
No Donor ◽  
Ros Accumulation ◽  
Mda Content ◽  
Scavenging Enzymes ◽  
Tolerance To Cadmium

Alternative pathway (AP) has been widely accepted to be involved in enhancing tolerance to various environmental stresses. In this study, the role of AP in response to cadmium (Cd) stress in two barley varieties, highland barley (Kunlun14) and barley (Ganpi6), was investigated. Results showed that the malondialdehyde (MDA) content and electrolyte leakage (EL) level under Cd stress increased in two barley varieties. The expressions of alternative oxidase (AOX) genes (mainly AOX1a), AP capacity (Valt), and AOX protein amount were clearly induced more in Kunlun14 under Cd stress, and these parameters were further enhanced by applying sodium nitroprussid (SNP, a NO donor). Moreover, H2O2 and O2− contents were raised in the Cd-treated roots of two barley varieties, but they were markedly relieved by exogenous SNP. However, this mitigating effect was aggravated by salicylhydroxamic acid (SHAM, an AOX inhibitor), suggesting that AP contributes to NO-enhanced Cd stress tolerance. Further study demonstrated that the effect of SHAM application on reactive oxygen species (ROS)-related scavenging enzymes and antioxidants was minimal. These observations showed that AP exerts an indispensable function in NO-enhanced Cd stress tolerance in two barley varieties. AP was mainly responsible for regulating the ROS accumulation to maintain the homeostasis of redox state.

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