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| 1 | Discoloration of Rhodamine B dyeing wastewater by schorl-catalyzed Fenton-like reaction显示文摘As other natural iron-bearing minerals, schorl could be taken as an effective iron source for degradation of organic pollutants by mineral-catalyzed Fenton-like system. In our present study, the schorl-catalyzed Fenton-like system has been successfully developed for discoloration of an active commercial dye, Rhodamine B (RhB), in an aqueous solution. Through a number of batch discoloration experiments under various conditions, it was found that the reactivity of the system increased by, respectively, increasing schorl dosage, temperature, hydrogen peroxide starting concentration and by decreasing the pH. Over 90% of discoloration ratio could be gained in less than 30 min, and nearly 70% of total organic carbon (TOC) could be removed in less than 200 min. And, the schorl catalyst could be repeatedly used at least ten times, still with high catalytic activity. Comparative studies indicated that the RhB discoloration ratios were much higher in presence of schorl and H2O2 than those in presence of schorl or H2O2 only, which suggested that the schorl-catalyzed Fenton-like reaction governed the RhB discoloration process. The content of Fe ion leaching in the solution was also measured using inductively coupling plasma-atomic emission spectra (ICP-AES). A mechanism proposed herein suggested that adsorption and Fenton-like reaction (heterogeneous and homogeneous) were responsible for the discoloration of RhB. | Murari PRASAD | 2009 | Science China(Technological Sciences)2009，52，10： | 7 |
| 2 | Reflecting the world' out there' : A cross cul- tural perspectiveon worries, values and Well- being显示文摘 | Klaus Claudia Stromberg Murari Prasad Regmi Bert 0 Richmond | 1998 | Journal of Social and Clinical Psychology1998，17，2： | 1 |
| 3 | Sequestration of carbon dioxide (CO 2 ) using red mud显示文摘 | Vishwajeet S. Yadav Murari Prasad Jeeshan Khan S.S. Amritphale M. Singh C.B. Raju | 2009 | Journal of Hazardous Materials2009，，1： | 1 |
| 4 | Multi-component sorption of Pb(II), Cu(II) and Zn(II) onto low-cost mineral adsorbent显示文摘 | Murari Prasad Huan-yan Xu Sona Saxena | 2007 | Journal of Hazardous Materials2007，，1： | 1 |
| 5 | Eng Chem Res显示文摘 | Murari Prasad Sona Saxenaind | 2004 | 43(6):15122004，43，6： | 1 |
| 6 | A novel catalyst in mineral-catalyzed Fenton-like system for dyeing wastewater discoloration显示文摘 | Huan-yan Xu Murari Prasad Yu Liu Schorl | 2009 | Journal of Hazardous Materials2009，165，： | 1 |
| 7 | Reflecting the world' out there' : A cross cul- tural perspectiveon worries, values and Well - being 显示文摘 | Klaus Claudia Stromberg Murari Prasad Regmi Bert O Richmond | 1998 | Journal of Social andClinical Psychology1998，17，2： | 1 |
| 8 | Reflecting the world out there: A cross cultural perspective on worries, values and Well-being显示文摘 | Klaus Claudia Stromberg Murari Prasad Regmi Bert O Richmond | 1998 | Journal of Social and Clinical Psychology1998，17，2： | 1 |
| 9 | Role of schorl’s electrostatic field in discoloration of methyl orange wastewater using schorl as catalyst in the presence of H_2O_2显示文摘Dyeing wastewater containing methyl orange (MO) could be effectively discolored by schorl-catalyzed Fenton-like system. Experimental results indicated that the MO discoloration ratios could be increased by increasing schorl dosage, temperature, initial H2O2 concentration, and by decreasing solution pH. When the raw schorl and the schorl samples sintered at 750°C, 850°C, 950°C and 1050°C were used as catalyst in Fenton-like system, the MO discoloration ratios obtained were 82%, 31%, 30%, 31% and 7%, respectively. XRD results showed that samples sintered at 750°C, 850°C and 950°C had no change in structure and still held the crystal structure of schorl and quartz, but, the content of schorl crystal decreased. Whereas, schorl crystal completely disappeared in the sample sintered at 1050°C and two new crystal phases of hematite and spinel were formed, which resulted in disappearance of the spontaneous ‘electrostatic poles’. Hence, it was inferred that the electrostatic field of schorl crystal could enhance the MO discoloration by schorl-catalyzed Fenton-like reaction. | Murari PRASAD | 2010 | Science China(Technological Sciences)2010，53，11： | 0 |
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