علامہ ابوالفضل عباسی چریا کوٹی
ماہ رواں کے افسوس ناک علمی حادثوں میں دومشہور مسلمان مصنفین اور اہل قلم کی وفات ہے، ایک سید امیر علی بالقابہ اور دوسرے مولوی سید وحیدالدین سلیم پانی پتی، اس سے پہلے چند ماہ ہوئے کہ ایک اور کہنہ مسلمان فاضل مصنف علامہ ابوالفضل عباسی چریا کوٹی وکیل گورکھپور کی وفات کی خبر ملی تھی ان بزرگوں کا یکے بعد دیگرے یوں رخصت ہوتے جانا علم اور قوم کی بدنصیبی ہے۔
علامہ ابوالفضل عباسی چریا کوٹی استاذنا محمد فاروق صاحب یاکوٹی کے شاگرد تھے اور ان چند مستثنیٰ علماء میں تھے، جنہوں نے اس عہد میں جب انگریزی کفر سمجھی جاتی تھی، انگریزی تعلیم حاصل کی، چنانچہ علی گڑھ کالج کے ان طلبہ میں تھے، جو اس کے سب سے کم دیرپا مشرقی شعبہ علوم میں داخل تھے، مرحوم وکالت کے ساتھ ہمیشہ مذہبی و تاریخی تالیف و تصنیف میں مصروف رہتے تھے، چنانچہ قرآن پاک کا اردو ترجمہ الاسلام، تاریخ اسلام، انگریزی میں قانون محمدی کی بعض کتابیں، انتخاب دواوین اور ایک دو اصلاحی افسانے یادگار چھوڑے، ’’الاسلام‘‘ اور ’’تاریخ اسلام‘‘ مرحوم کی بہترین تصنیفات ہیں، مرحوم کی عمر غالباً کم و بیش ستر (۷۰) ہوگی۔ (سید سلیمان ندوی، اگست ۱۹۲۸ء)
The people of Sindh throughout history remain always very tolerate with one another personal belief. In this context the first person who write down the biography of Prophet Muhammad (PBUH) in Sindhi language was a Hindu namely Lal chand amr dino mal jugtiani, his book “Muhammad Rasoolullah P.B.U.H.” published in 1911 A.D. He not only written biography but also condemn those prejudice orientalist as well as native masses against their extremes behavior on pious character and caliber of noble Prophet of Islam. He along with other few notable writers namely Jath mal pursaram guljarani “Paighmbar-i- Islam”. Amar lal vasan mal hingorani “Mir Muhammad Arabi” 1947 A.D and an English book translated by Hout chand dial mal jughtyani “Isalm jo Paighabar” 1931 A.D. In this article researcher highlights their work along with their brief life sketch.
Next Generation Mixed Matrix Membranes for CO2 Separations aimed at Energy & Environmental Issues The gas separation process is mainly governed by membrane technology in different industries. Currently, gas separations acquire a membrane market of over four hundred million dollars per year which comprise 24% of the overall membrane market. The components of feed mixture can be efficiently separated via membranes, which exhibit promising potential, based on size, shape and physiochemical properties of the components. Generally, inorganic membranes (e.g. alumina, zeolite, carbon etc.) exhibit high separation efficiency and can withstand under high thermal and chemical exposure than polymeric membranes. However, their commercial application is limited due to some disadvantages such as their brittleness, difficult processing and high cost. In past decades, polymeric membranes have attracted the attention of researchers due to their promising intrinsic advantages of efficient removal of unwanted gases from feed stream economically. Gas separation membranes are efficiently used for natural gas treatment, hydrogen recovery, and oxygen and nitrogen recovery from air. The aim of this research work was to fabricate promising mixed matrix membranes with superior CO2 selectivities and high permeabilities at high temperatures and pressures. In chapter 2 of this thesis, MMMs were synthesized comprising of F-SPEEK polymer and zeolite 4A as filler. Gas separation studies for both pure and mixed gases were examined and results revealed the considerable increase in permeability and selectivity at higher filler loadings. Moreover, the combined effect of sulfonic and fluorine groups in the polymer matrix significantly improved molecular sieving effect, fixed pores and high free volume which resulted in enhanced gas separation performance. The increasing permselectivity of F-SPEEK/4A MMMs proved to be an effective material for CO2 sequestration. Chapter 3 deals with Bio-MOF-11 based PSf MMMs for CO2 separation. BioMOFs are the sub-class of MOFs which have Lewis basic sites in their structures. BioMOF-11 consists of nitrogenous base adenine with five nitrogen in the ring which has a strong affinity towards CO2 gas molecules. The gas separation results showed outstanding. CO2 permeabilities (upto 210%) and selectivities (upto 100%) at higher MOF loadings as compared to pure polymer. These performances were attributed to the cobalt-adeninateacetate paddle wheel clusters. Chapter 4 focusses on the investigation of highly stable zirconium based MOF UiO66. MOF particles first functionalized with the sulfonic group which was grafted by the silane coupling agent MPTMS. Sulfonic group imparted high separation properties to the UiO-66 MOF. PSf was used as a polymer matrix and MMMs were synthesized of nonfunctionalized and functionalized UiO-66 and their results were compared. The ideal and mixed gas performance of the synthesized MMMs was investigated by DSC, SEM and results from density and FFV measurements that proved good MOF‐polymer adhesion. Moreover, the MMMs exhibited high CO2 permeabilities and selectivities and proved this material promising for the CO2 separation. PIM-1 and Cu-MOF based MMMs were studied in chapter 5 of this thesis. PIM-1 is well-known for its high rigid backbone structure, interconnected voids and high free volume, high permeabilities ranging from several hundred to thousands (3000-8000 barrer) and comparable selectivities. Cu-MOF consists of a paddle wheel structure which on incorporation with PIM-1 results in high stability and superior gas separation performance.