Dataset Information

Utilizing Undissolved Portion (UNP) of Cement Kiln Dust as a Versatile Multicomponent Catalyst for Bioethylene Production from Bioethanol: An Innovative Approach to Address the Energy Crisis.

ABSTRACT: This study focuses on upcycling cement kiln dust (CKD) as an industrial waste by utilizing the undissolved portion (UNP) as a multicomponent catalyst for bioethylene production from bioethanol, offering an environmentally sustainable solution. To maximize UNP utilization, CKD was dissolved in nitric acid, followed by calcination at 500 °C for 3 h in an oxygen atmosphere. Various characterization techniques confirmed that UNP comprises five different compounds with nanocrystalline particles exhibiting an average crystal size of 47.53 nm. The UNP catalyst exhibited a promising bioethylene yield (77.1%) and selectivity (92%) at 400 °C, showcasing its effectiveness in converting bioethanol to bioethylene with outstanding properties. This exceptional performance can be attributed to its distinctive structural characteristics, including a high surface area and multiple-strength acidic sites that facilitate the reaction mechanism. Moreover, the UNP catalyst displayed remarkable stability and durability, positioning it as a strong candidate for industrial applications in bioethylene production. This research underscores the importance of waste reduction in the cement industry and offers a sustainable path toward a greener future.

SUBMITTER: Nasr M

PROVIDER: S-EPMC10785308 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature

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Utilizing Undissolved Portion (UNP) of Cement Kiln Dust as a Versatile Multicomponent Catalyst for Bioethylene Production from Bioethanol: An Innovative Approach to Address the Energy Crisis.

Nasr Mahmoud M Abdelkader Adel A El-Nahas Safaa S Osman Ahmed I AI Abdelhaleem Amal A El Nazer Hossam AbdelFattah HA Rooney David W DW Halawy Samih A SA

ACS omega 20231228 1

This study focuses on upcycling cement kiln dust (CKD) as an industrial waste by utilizing the undissolved portion (UNP) as a multicomponent catalyst for bioethylene production from bioethanol, offering an environmentally sustainable solution. To maximize UNP utilization, CKD was dissolved in nitric acid, followed by calcination at 500 °C for 3 h in an oxygen atmosphere. Various characterization techniques confirmed that UNP comprises five different compounds with nanocrystalline particles exhib ...[more]

PMID: 38222655

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Project description:BACKGROUND:Vaccination rates against Human Papillomavirus (HPV) in the US remain alarmingly low. Physicians can significantly influence a parent's decision to vaccinate their children. However, medical education often lacks training on specific strategies for communicating with vaccine hesitant parents. METHODS:We created an innovative curriculum designed to teach medical students how to address HPV vaccine hesitancy. The curriculum consisted of (1) a presentation on the epidemiology, biology, and disease morbidity associated with HPV, (2) a video that teaches specific communication strategies and (3) role-playing simulations. This curriculum was delivered to medical students at two separate sites. Medical students were surveyed before and after completing the educational curriculum. The surveys assessed student comfort talking to HPV vaccine hesitant parents and their likelihood to recommend the HPV vaccine. RESULTS:Pre- and post-intervention surveys were completed by 101 of the 132 participants (77% response rate). After the intervention, student awareness of the benefits of the HPV vaccine increased by a mean of 0.82 points (Likert scale 1-5, p?<?0.01) and student comfort talking to vaccine hesitant parents increased by a mean of 1.37 points (p?<?0.01). Prior to the intervention, students more strongly recommended the HPV vaccine to females compared to males, but this gender disparity was eliminated after the intervention (p?<?0.01). Personal vaccination status was independately associated with a higher likelihood of recommending the HPV vaccine both before and after the intervention. CONCLUSION:Our innovative curriculum improved medical student comfort level discussing HPV vaccination with hesitant parents and increased the perceived likelihood of recommending HPV vaccination. The intervention is easy to implement, scalable, and requires minimal resources. Educating future providers on this important topic has the potential to improve vaccination rates nationwide and thus should be considered for all medical students.

Project description:Objective This study assesses a new departmental role-a professionalism mentor-who receives sexual harassment reporting, liaisons with campus resources, and organizes educational sessions. Study Design Multicenter randomized controlled survey study. Methods Academic ophthalmology departments in the United States were randomized to a professionalism mentor group ( n = 9) and a control group ( n = 7). Among both pre- and postsurveys, 605 faculty and trainee responses were received and 546 were complete. The intervention group was assigned a professionalism mentor with educational session for a 6- to 10-month period. Sexual harassment and reporting rate change over time were compared between the two groups. Results Among 546 anonymous responses, 16% experienced workplace sexual harassment during the prior 10 months. Location in the South or Midwest was a risk factor ( p < 0.001). Victims were mostly women (76%), including residents/fellows (46%) and academic attendings (49%); perpetrators included patients (35%) and academic attendings (35%). Departments with and without a professionalism mentor had stable harassment from pre- to postsurvey ( p = 0.95 comparing change). The professionalism mentor group had an increase in reporting to an authority from pre- to postsurvey (7-23%), whereas the control group had a decrease (27-12%; p = 0.07 comparing change). Most faculty and trainees in the interventional arm of this study recommended instituting a professionalism mentor with educational session (66% presurvey and 68% postsurvey), compared with educational session alone (25% presurvey and 23% postsurvey), or neither (9% presurvey and 9% postsurvey). Residency program directors in the professionalism mentor group even more strongly supported instituting both a professionalism mentor and educational program (100% presurvey and 100% postsurvey) as opposed to educational program alone (0% presurvey and 0% postsurvey) or neither (0% presurvey and 0% postsurvey). Conclusion This study identified a high sexual harassment rate in academic ophthalmology departments over a brief period. The presence of a professionalism mentor was viewed favorably and may lead to increased reporting.

Dataset Information

Utilizing Undissolved Portion (UNP) of Cement Kiln Dust as a Versatile Multicomponent Catalyst for Bioethylene Production from Bioethanol: An Innovative Approach to Address the Energy Crisis.

Publications

Utilizing Undissolved Portion (UNP) of Cement Kiln Dust as a Versatile Multicomponent Catalyst for Bioethylene Production from Bioethanol: An Innovative Approach to Address the Energy Crisis.

Similar Datasets

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