Search or add a thesis

Advanced Search (Beta)
Home > Synthesis and Characterization of Multifunctional Inorganic-Organic Hybrid Microgels for Catalytic Applications

Synthesis and Characterization of Multifunctional Inorganic-Organic Hybrid Microgels for Catalytic Applications

Thesis Info

Access Option

External Link

Author

Naseem, Khalida

Program

PhD

Institute

University of the Punjab

City

Lahore

Province

Punjab

Country

Pakistan

Thesis Completing Year

2019

Thesis Completion Status

Completed

Subject

Chemistry

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/11837/1/Khalida%20Naseem%20chemistry%202019%20uop%20lhr%20prr.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676727453290

Asian Research Index Whatsapp Chanel
Asian Research Index Whatsapp Chanel

Join our Whatsapp Channel to get regular updates.

Similar


Microgel particles are emerging soft and smart materials for multiple applications including their use as adsorbent for environmental applications and as micro-reactor for in-situ fabrication of metal nanoparticles etc. The impregnation of such organic microgel particles with catalytic and optical active inorganic metal nanoparticles results in formation of hybrid materials with exceptional properties. This work encircles the synthesis of microgels with different morphologies, their use as adsorbent for environmental applications and as micro-reactor for stabilization of catalytic active metal nanoparticles. First part of the thesis emphasizes on recent research progress of the synthesis, properties, characterization and applications of microgels and hybrid microgels with different morphologies. Later, synthesis of poly(N-isopropylmethacrylamide-acylic acid) [p(NipMa-Aac)], polystyrene poly(N-isopropylmethacrylamide-acrylic acid) [PSt-p(NipMa-Aac)] core/shell microgels and silver nanoparticles loaded PSt-p(NipMa-Aac) composite microgels have been described in detail. pH responsive behavior of acrylic acid (Aac) co-monomer functionalized p(NipMa), PSt p(NipMa) and Ag@PSt-p(NipMa-Aac) core/shell hybrid microgels have also been described. Then, characterization of both pure and hybrid microgels using Fourier transform infrared spectroscopy (FTIR), Uv-vis spectroscopy (Uv-vis), dynamic light scattering (DLS), thermo gravimetric analysis (TGA), differential scanning calorimetry (DSC) and Transmission electron microscopy (TEM) has been described. Use of p(NipMa-Aac) microgel particles and PSt-p(NipMa-Aac) core/shell microgel particles as adsorbents for removal of various pollutants such as dyes and heavy metal ions from iii aqueous medium have been discussed in detail. At the end of thesis, applications of Ag@PSt p(NipMa-Aac) core/shell composite microgel particles as catalyst for reduction of various nitro aromatic compounds such as 2-nitrophenol (2-Np), 4-nitrophenol (4-Np), 2, 4-dinitrophenol (2, 4-DNp), 4-Nitrotoluene (4-NT) and 4-chloro nitrobenzene (4-CNb) as well as toxic dyes such as Congo red (CR), Rhodamine B (Rh-B), methylene blue (MB) and brilliant blue (Bb) under various reaction conditions to explore the mechanism of catalysis process have been described. Recoverability and reusability of Ag@PSt-p(NipMa-Aac) core/shell composite micro particles catalyst was also investigated.
Loading...
Loading...

Similar Books

Loading...

Similar Chapters

Loading...

Similar News

Loading...

Similar Articles

Loading...

Similar Article Headings

Loading...

حضرت مولاناقاری نیاز احمد مرحوم

حضرت مولانا قاری نیاز احمد مرحوم

قاری نیاز احمد سرکار
حقیقت دے وچ سن اوہ رب دے یار
سوہنا خلق تے سوہنی صورت ہر اک نوں پئی بھاوے
جیہڑا ملدا ہک واری او ول ول ملنے آوے
کرن دعا رب دیوے شفاء سوہنا سائیں کرم فرماوے
غم اندوہ سب دور ہوجاندے جیہڑا ملدا سی ہک وار

بہاول نگر توں ٹامیوالی مرشد نے بھجوایا
ساوی مسجد ڈیرا لاء کے دین اسلام پھیلایا
قرآن شریف تے فقہ فقر دا نالے درس حدیث پڑھایا
وعظ کلام انہاں دا سن کے توبہ کردے اوگن ہار

ایڈا چرچا شہرت ہوئی ہر کوئی آپ نوں بھالے
دین اسلام دے آپ حضور نے ہر جا دیوے بالے
کفر و شرک مٹایا آپ نے ہر جا تھئے اجالے
دینی جذبہ ویکھ کے لوگ ہو گئے تابعدار

سادے کپڑے سادہ کھانا خوش اخلاق بتہرے
جس تے نظر کرم دی پاندے کردے دور اندھیرے
واہ نصیب انہاں دا جینہاں کیتے درشن تیرے
یاد تہاڈی بڑا ستاندی دل روندا زار و نزار

ظاہر باطن پاک انہاں دا رزق حلال کماندے
آل اولاد تے آن والا نوں رزق حلال کھواندے
ہر اک نوں تاکید سی کردے جو در سرکار تے آندے
نہ اوہ محفل نہ اوہ رونق کتھے ٹر گئے ہو سرکار

قادری سائیںؔ یاد انہاں دی دل وچ ورمی بہہ گئی
ایڈا درد وچھوڑے والا کیویں ایہہ جندڑی سہہ گئی
رب راضی تے ہر کوئی راضی جگ وچ گل انہاں دی رہ گئی
پر وچھڑے یار نہ بھلدے بھاویں گزرن سال ہزار

دعوت الی اللہ کے اصول قرآن کی نظر میں

The word excommunication means to exclude a Muslim from prescribed boundary of Islam. Non of us have the authority of excommunicated any one from Islam except Allah almighty and his beloved prophet Mohammad (PBUH). Because the act of excluding a Muslim, belongs to the orders of Allah (the foundation of Which is Quran) and Sunnah therefore drastic care should be taken in this regard and the one and only would be called as disbeliever if confirmed in the light Quran and Sunnah. Basically any Muslim will be called as Muslim until and unless he is acting openly upon the rules and regulation of Islam. A Muslim would be considered as disbeliever if proclaimed blasphemy intestinally.

Fasciolosis in Pakistan: Adult and Egg Phenotyping, Risk Mapping and Serological Studies in Sub-Tropical Punjab

Fasciolosis also known as fascioliasis is a highly pathogenic liver infection caused by F. hepatica and F. gigantica. The study was aimed to use morphological markers for identification of fasciolids, generation of risk maps and use of rapid and cost effective diagnostic tool to reduce the impact of fasciolosis on animal health. The phenotypic features of adults and eggs of fasciolid species infecting buffaloes from central Punjab area, Pakistan, have been studied to characterize the fasciolid populations involved. Morphometric analyses were made by applying standardized measurements with a computer image analysis system (CIAS). The current investigation is first time conducted in Pakistan to confirm the taxonomic status of fasciolids by comparing with other pure standard populations viz., F. hepatica of European Mediterranean origins and F. gigantica representing Burkina Faso (Africa). In these geographical areas there is no overlapping of both fasciolids species. Only parasites obtained from bovines were employed. The climatic factors influencing fascioliasis presence and potential spread were analyzed from five meteorological stations during 1990-2010. The fascioliasis forecast risk Mt and Wb-bs (Water-Budget-Based System) indices and NDVI (Normalized Difference Vegetation Index), known to be useful for fascioliasis assessment, were obtained and correlated with geographical distribution, seasonality patterns and two-decade evolution of fascioliasis in livestock throughout the province. These two climatic forecast indices and a remote sensing marker are used to characterize the climatic factors and the earth surface in order to ascertain the epidemiological complexity and time-lag dynamics of fascioliasis. The seroprevalence of fascioliasis was also determined in sub-tropical Punjab with the application of a very sensitive and xxxispecific ELISA test by using monoclonal antibodies which are able to detect even very low intensity infection. The MM3 Sero-ELISA was applied to check the status of fascioliasis. The increase of disease transmission risk in the lowlands should be highlighted, given that the largest part of the Punjab province includes low altitude, highly irrigated plains. The importance of livestock in this province makes this phenomenon to be given forecast priority assessment henceforth in order to establish the adequate control measures. The use of cost effective diagnostic tools would be helpful to reduce the impact of fascioliasis on animal health by selecting the appropriate anthelmintic treatment. An annual treatment scheme to effectively control the disease is finally recommended to be applied throughout the whole Punjab province.